CVE-2025-31818

6.5 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in ContentBot AI Writer WordPress plugin allows attackers to inject malicious scripts into web pages. When users view compromised pages, the scripts execute in their browsers, potentially stealing session cookies or performing actions on their behalf. All WordPress sites using ContentBot AI Writer versions up to 1.2.4 are affected.

💻 Affected Systems

Products:
  • ContentBot AI Writer WordPress Plugin
Versions: n/a through 1.2.4
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with ContentBot AI Writer plugin enabled.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers steal administrator session cookies, gain full control of WordPress site, install backdoors, deface website, or steal sensitive user data.

🟠

Likely Case

Attackers hijack user sessions, redirect visitors to malicious sites, or display fraudulent content to steal credentials.

🟢

If Mitigated

With proper input validation and output encoding, malicious scripts are neutralized before reaching users' browsers.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Stored XSS vulnerabilities are commonly exploited. Attackers need to inject malicious payloads that get stored and served to users.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.2.5 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/content-bot/vulnerability/wordpress-contentbot-ai-writer-plugin-1-2-4-cross-site-scripting-xss-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find ContentBot AI Writer. 4. Click 'Update Now' if update available. 5. If no update, download latest version from WordPress repository and manually update.

🔧 Temporary Workarounds

Disable ContentBot AI Writer Plugin

all

Temporarily disable the vulnerable plugin until patched.

wp plugin deactivate content-bot

Implement Content Security Policy

all

Add CSP headers to restrict script execution sources.

Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to wp-config.php: header("Content-Security-Policy: default-src 'self'; script-src 'self'");

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block XSS payloads
  • Restrict plugin access to trusted users only and monitor for suspicious content

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for ContentBot AI Writer version. If version is 1.2.4 or earlier, you are vulnerable.

Check Version:

wp plugin get content-bot --field=version

Verify Fix Applied:

After updating, verify ContentBot AI Writer version is 1.2.5 or later in WordPress plugins list.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to plugin endpoints
  • Suspicious script tags in content submissions
  • Multiple failed login attempts after content updates

Network Indicators:

  • Outbound connections to unknown domains from user browsers
  • Unexpected redirects from plugin pages

SIEM Query:

source="wordpress.log" AND ("content-bot" OR "contentbot") AND ("script" OR "alert" OR "onerror" OR "javascript:")

🔗 References

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