CVE-2025-22262

5.9 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the Bonjour Bar WordPress plugin allows attackers to inject malicious scripts into web pages. When users view pages containing the injected scripts, the attacker can steal session cookies, redirect users, or perform actions on their behalf. All WordPress sites using Bonjour Bar versions up to 1.0.0 are affected.

💻 Affected Systems

Products:
  • Bonjour Bar WordPress Plugin
Versions: n/a through 1.0.0
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations with the vulnerable plugin version are affected regardless of configuration.

⚠️ 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 could steal administrator session cookies, take over WordPress sites, install backdoors, deface websites, or redirect visitors to malicious sites.

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies, potentially compromising user accounts and performing unauthorized actions.

🟢

If Mitigated

With proper input validation and output encoding, malicious scripts would be neutralized before reaching users, preventing exploitation.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Stored XSS vulnerabilities are commonly exploited, though specific exploit details for this CVE aren't publicly documented.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.0.1 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/bonjour-bar/vulnerability/wordpress-bonjour-bar-plugin-1-0-0-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 Bonjour Bar and click 'Update Now'. 4. If no update is available, deactivate and delete the plugin immediately.

🔧 Temporary Workarounds

Disable Bonjour Bar Plugin

all

Temporarily disable the vulnerable plugin until patched version is available

wp plugin deactivate bonjour-bar

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

  • Remove the Bonjour Bar plugin completely from your WordPress installation
  • Implement web application firewall (WAF) rules to block XSS payloads

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for Bonjour Bar version. If version is 1.0.0 or earlier, you are vulnerable.

Check Version:

wp plugin get bonjour-bar --field=version

Verify Fix Applied:

After updating, verify Bonjour Bar version shows 1.0.1 or later in WordPress plugins list.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to plugin endpoints
  • JavaScript payloads in request parameters
  • Multiple failed XSS attempts

Network Indicators:

  • Suspicious JavaScript in HTTP requests to WordPress admin-ajax.php or plugin-specific endpoints

SIEM Query:

source="wordpress.log" AND ("bonjour-bar" OR "xss" OR "<script>")

🔗 References

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