插件名称	Colibri Page Builder
漏洞类型	跨站点脚本 (XSS)
CVE编号	CVE-2025-11747
紧急	中等的
CVE 发布日期	2025-12-18
源网址	CVE-2025-11747

Authenticated (Contributor) Stored XSS in Colibri Page Builder (<=1.0.345): Essential Guidance for Site Owners

A critical authenticated stored Cross-Site Scripting (XSS) vulnerability, identified as CVE-2025-11747, impacts Colibri Page Builder versions up to 1.0.345. This article, from the Managed-WP security experts, outlines the vulnerability’s implications, detection strategies, and effective remediation steps — including how Managed-WP’s next-level WAF protections help shield your site until you’re able to update.

作者： 托管 WordPress 安全团队
日期： 2025-12-18
标签： WordPress, XSS, Colibri, WAF, security, plugin vulnerabilities

概括： An authenticated stored XSS vulnerability in the Colibri Page Builder plugin, affecting versions up to 1.0.345, allows users with Contributor role access to embed malicious scripts via shortcode. The vendor patched this in version 1.0.358. For environments where immediate updates are not possible, Managed-WP recommends layered defenses including access restrictions, content sanitation, meticulous scanning, and enabling Managed-WP’s virtual patching via a custom WAF ruleset. Continue reading for detailed detection, triage, and mitigation procedures tailored for WordPress administrators and site owners.

Incident Overview: What WordPress Site Owners Need to Know

This stored Cross-Site Scripting vulnerability arises from insufficient sanitization of shortcodes inserted by Contributors in the Colibri Page Builder plugin (versions ≤1.0.345). Because the malicious payload persists in the database, it executes every time an affected page or post is viewed — potentially compromising user sessions and site integrity.

• 插件： Colibri Page Builder
• 受影响版本： All up to and including 1.0.345
• 已修复： Version 1.0.358
• CVE标识符： CVE-2025-11747
• Required User Role: 贡献者或更高级别
• 漏洞类型： 存储型跨站脚本攻击（XSS）
• CVSS 3.1 Vector: AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L (~6.5 severity)

Though some threat databases flag the issue as medium or low severity, stored XSS vulnerabilities often enable more complex and damaging attacks, including session hijacking, malware injection, and phishing campaigns leveraging your trusted domain.

---

Why This Vulnerability Poses Serious Risks

Stored XSS attacks are dangerous due to persistence and the ability to affect any visitor or admin accessing compromised content. Potential impacts include:

• Theft of authentication cookies or tokens from users with elevated rights.
• UI spoofing or malicious redirects designed to deceive administrators.
• Injection of backdoors or malicious scripts damaging SEO and site reputation.
• Escalation via social engineering—enticing editors or admins to unknowingly trigger the exploit.

Since Contributors can upload and modify content, this flaw is particularly worrisome for sites with external or guest writers who have limited privileges but access to post or edit content.

---

Attack Vector: How an Exploitation Scenario Might Unfold

1. An attacker creates or hijacks a Contributor-level account.
2. The attacker injects malicious scripts via the vulnerable shortcode attributes.
3. The payload is stored in the WordPress database.
4. When an editor, admin, or visitor views the affected page, the malicious script executes in their browser context.
5. This code can perform actions such as stealing session cookies, exfiltrating data, or initiating unauthorized requests.

重要的： Exploitation requires authenticated Contributor access and user interaction (page view or preview). While it does not self-propagate between sites, this vulnerability can quickly be weaponized within a targeted environment.

---

Priority Action Plan for Site Owners and Administrators

1. Immediately update Colibri Page Builder to version 1.0.358 or later. Validate updates in a staging environment when possible and take a full site backup before applying changes.
2. Audit site content for unusual or suspicious shortcodes, particularly those containing unexpected <script> tags or obfuscated JavaScript.
3. Restrict Contributor privileges temporarily to prevent shortcode insertions or require editorial review before changes go live.
4. Enable Managed-WP’s virtual patching features and WAF rules to block known exploit patterns if plugin update cannot be deployed immediately.
5. Implement hardening measures and monitoring: force logout active sessions, increase logging around publishing activities, and monitor server logs for anomalous traffic.
6. Clean up malicious content: identify and remove corrupt shortcodes from post content, post meta, or widgets. Revoke and rotate API keys or secrets if compromised.

---

Safe Search Methods for Malicious Shortcode Payloads

Before performing automatic cleanup, conduct read-only inspections using WP-CLI or database queries:

wp db query "SELECT ID, post_title, post_type FROM wp_posts WHERE post_content LIKE '%[colibri%' LIMIT 200;"

wp db query "SELECT meta_id, post_id, meta_key, meta_value FROM wp_postmeta WHERE meta_value LIKE '%[colibri%' LIMIT 200;"
wp db query "SELECT option_id, option_name FROM wp_options WHERE option_value LIKE '%[colibri%' LIMIT 200;"

Use regex or scanning tools to detect suspicious JavaScript strings, such as javascript：, 错误=, <script>, or encoded variants.

---

Detailed Remediation Checklist for Site Administrators

• 备份： Full database and file system snapshot before remediation.
• 更新： Plugin to 1.0.358+, plus any other outdated components.
• 扫描： Malware scans for files and database; manual review of shortcodes.
• 用户审核： Revoke or disable unknown users, enforce password resets.
• Content Cleanse: Remove or sanitize malicious shortcode injections and inline scripts.
• Workflow Hardening: Require editorial approval of Contributor submissions.
• 监控： Enable activity logging and real-time alerts for content changes and frontend errors.
• 事件响应： If exploitation is confirmed, notify affected users, rotate credentials, and consider professional forensic analysis.

---

How Managed-WP Protects Your Site from Stored XSS Vulnerabilities

Managed-WP’s robust Web Application Firewall (WAF) is a crucial defense layer, especially when immediate plugin patching isn’t feasible. Our platform delivers:

• 虚拟补丁： Rapid deployment of targeted rules to block malicious shortcode patterns and injection attempts.
• Automated content scanning: Detection of suspicious shortcode and JavaScript fragments in your database.
• Managed signature updates: Our security team continuously tunes protection rules specific to known vulnerabilities.
• Attack alerts: Real-time notifications empower rapid incident triage.
• Role-based restrictions: Guidance and enforcement of least privilege to reduce risk exposure.

These measures minimize your site’s attack surface and provide critical protection against exploit attempts while you plan permanent remediation.

---

Conceptual Example: WAF Rules to Mitigate Stored XSS in Shortcodes

1. Block requests containing shortcode payloads with script-related tokens:
   • Example: deny POST requests with [colibri 结合 javascript： 或者 错误= substrings.
2. Sanitize or deny known dangerous HTML tags (e.g., <script>, <iframe>) submitted by Contributors.
3. Monitor obfuscated encoding patterns that bypass simple filters (e.g., <).
4. Sample ModSecurity-style pseudo-rule (conceptual):

SecRule REQUEST_URI|ARGS_POST "@contains [colibri" "id:'900001',phase:2,deny,log,msg:'Possible Colibri shortcode XSS attempt',chain"
  SecRule REQUEST_BODY|ARGS_POST "@rx (javascript:|<script|onerror\s*=|onload\s*=|<)" "t:none"

笔记： Rules require contextual tuning to ensure effective security without false positives. Managed-WP handles this complexity on your behalf.

---

Guidance for Safe Triage and Content Cleanup

1. Export suspicious content before modification for forensic record-keeping.
2. Manually review flagged shortcode content; avoid bulk automated replacements.
3. Remove or sanitize shortcode content incorporating unsafe scripts.
4. If widespread, consider disabling the Colibri plugin temporarily during cleanup.
5. Test all changes in a staging environment before production rollout.

---

Developer Recommendations: Writing Secure Shortcode Handlers

• Implement strict output escaping using functions like esc_attr(), esc_html()， 和 wp_kses_post().
• Validate all inputs against a white-list of allowed values and attributes.
• Disallow raw HTML or JavaScript in shortcode attributes that render unescaped.
• Use WordPress nonces and capability checks in AJAX or admin endpoints.
• Enforce the principle of least privilege for shortcode usage.
• Establish content review workflows for Contributor-submitted content.

Plugin and theme developers integrating Colibri Page Builder should audit custom code for potential sanitization gaps.

---

Monitoring and Post-Remediation Detection Tips

• Track unexpected changes to pages/posts, especially from Contributors.
• Watch for increases in 404 errors leading to redirects.
• Monitor browser console and server logs for unusual outbound network requests.
• Investigate user reports of phishing or suspicious behavior after visits.
• Pay attention to warnings issued by search engines or security scanners.

If signs of compromise appear, take the site offline, collect forensic data, and initiate remediation.

---

对主机提供商和代理机构的建议

• Identify all managed sites using Colibri Page Builder versions ≤1.0.345.
• Prioritize high-traffic and admin-intensive clients for urgent patching.
• Use automated deployment tools to roll out updates promptly.
• Apply Managed-WP virtual patching across affected sites as an interim defense.
• Communicate clearly with clients about the vulnerability, remediation steps, and potential service impacts.
• Provide clients with detailed post-remediation reports and future hardening advice.

---

Long-Term Strategies for Plugin Security Management

• Maintain an updated inventory of installed plugins and their versions.
• Test all updates thoroughly in staging environments before production.
• Enforce least privilege access controls for all user roles.
• Leverage Managed-WP’s WAF with virtual patching to reduce exposure windows.
• Regularly audit plugins, removing inactive or deprecated ones.
• Stay informed on WordPress security advisories and vendor patches.
• Implement strict content moderation policies, especially for external contributors.

---

如果无法立即更新

• Temporarily disable the Colibri Page Builder plugin if feasible.
• If disabling is not an option, consider disabling shortcode rendering globally temporarily:

<?php
// Disable shortcode rendering temporarily (affects all shortcodes)
remove_filter('the_content', 'do_shortcode', 11);
?>

警告： This affects all shortcodes; test thoroughly before applying.

• Restrict or suspend Contributor accounts.
• Activate Managed-WP’s virtual patching and WAF protections.
• Conduct emergency content audits and clean suspicious entries.

---

Responsible Disclosure and CVE Coordination

This vulnerability is cataloged as CVE-2025-11747, helping secure coordinated response. Security researchers discovering similar issues should responsibly disclose to plugin vendors, avoid public exploit release pre-patch, and work with trusted platforms to limit risk.

---

Start Protecting Your Site Immediately with Managed-WP Free Plan

标题： Managed-WP Free — Essential Immediate Protection for WordPress Sites

Managed-WP’s Free plan delivers critical defenses while you prepare remediation. Included are managed firewall coverage, a WAF tuned to OWASP Top-10 risks, unlimited traffic, and malware scanning — essential tools to minimize risk exposure. Consider upgrading to paid tiers for automated malware removal, IP filtering, advanced virtual patching, and detailed reporting.

请在此注册：
https://my.wp-firewall.com/buy/wp-firewall-free-plan/

Note: The Free plan is ideal for quick, hands-off mitigation. High-risk environments should consider Standard or Pro plans for enhanced automation and protection.

---

Incident Response Timeline: Managing This Issue Efficiently

1. Detection (0–1 hour): Automated alerts or manual discovery triggers incident logging.
2. Containment (1–3 hours): Apply WAF rules, restrict Contributor permissions immediately.
3. Investigation (3–12 hours): Identify affected content, export suspect data for analysis.
4. Eradication (12–48 hours): Remove malicious content, update plugins, and apply hardening.
5. Recovery (48–72 hours): Resume normal operations, continue monitoring closely.
6. Lessons Learned (within 1 week): Document improvements, update processes, and inform stakeholders.

---

Final Recommendations for Managed-WP Customers

1. Patch to Colibri Page Builder 1.0.358 immediately.
2. Scan for suspicious shortcodes and remove malicious content.
3. If immediate update is infeasible, leverage Managed-WP WAF virtual patching and limit user privileges.
4. Audit user accounts and enforce password resets as needed.
5. Adopt managed patching and monitoring processes for overall WordPress security hygiene.

---

How Managed-WP Can Support You

For hands-on assistance, Managed-WP offers:

• Rapid virtual patch deployment tailored to your environment.
• Comprehensive malware scanning and auto-removal services on paid tiers.
• Expert forensic analysis and remediation guidance for complex incidents.

Our team can help immediately block exploitation of the CVE-2025-11747 shortcode XSS vector and support safe content cleaning.

---

Bookmark this article and subscribe to Managed-WP security updates for continuous practical advice. Stay ahead of WordPress vulnerabilities and keep your site secure and reliable.

---

参考

• CVE-2025-11747 Public Record
• Vendor Patch: Colibri Page Builder version 1.0.358
• Security Research by Abu Hurayra (disclosure)

---

Disclaimer: This post is prepared by the Managed-WP security experts as practical guidance. It does not replace a detailed forensic investigation. If you suspect deeper compromise such as web shells or unauthorized admin accounts, retain specialized incident response services promptly.

---

采取积极措施——使用 Managed-WP 保护您的网站

不要因为忽略插件缺陷或权限不足而危及您的业务或声誉。Managed-WP 提供强大的 Web 应用程序防火墙 (WAF) 保护、量身定制的漏洞响应以及针对 WordPress 安全的实战修复，远超标准主机服务。

博客读者专享优惠： 加入我们的 MWPv1r1 保护计划——行业级安全保障，每月仅需 20 美元起。

• 自动化虚拟补丁和高级基于角色的流量过滤
• 个性化入职流程和分步网站安全检查清单
• 实时监控、事件警报和优先补救支持
• 可操作的机密管理和角色强化最佳实践指南

轻松上手——每月只需 20 美元即可保护您的网站：
使用 Managed-WP MWPv1r1 计划保护我的网站

为什么信任 Managed-WP？

• 立即覆盖新发现的插件和主题漏洞
• 针对高风险场景的自定义 WAF 规则和即时虚拟补丁
• 随时为您提供专属礼宾服务、专家级解决方案和最佳实践建议

不要等到下一次安全漏洞出现才采取行动。使用 Managed-WP 保护您的 WordPress 网站和声誉——这是重视安全性的企业的首选。

点击上方链接即可立即开始您的保护（MWPv1r1 计划，每月 20 美元）。