CVE-2025-58231

6.5 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the Bitly WordPress plugin allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. The vulnerability affects all versions up to 2.7.4 of the plugin, potentially compromising WordPress sites using this plugin.

💻 Affected Systems

Products:
  • Bitly WordPress Plugin
Versions: All versions up to and including 2.7.4
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects WordPress installations with the Bitly plugin installed and activated.

⚠️ 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 session cookies, redirect users to malicious sites, perform actions on behalf of authenticated users, or deface websites.

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies or credentials, potentially gaining administrative access to WordPress sites.

🟢

If Mitigated

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

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Requires attacker to have ability to inject malicious payload into vulnerable input fields.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version 2.7.5 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/wp-bitly/vulnerability/wordpress-bitly-plugin-2-7-4-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 'Bitly' plugin
4. Click 'Update Now' if update is available
5. If no update appears, manually download version 2.7.5+ from WordPress.org
6. Deactivate old plugin, upload new version, activate

🔧 Temporary Workarounds

Disable Bitly Plugin

WordPress

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate wp-bitly

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'");

🧯 If You Can't Patch

  • Remove the Bitly plugin entirely if not essential
  • Implement web application firewall (WAF) rules to block XSS payloads

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for Bitly version

Check Version:

wp plugin get wp-bitly --field=version

Verify Fix Applied:

Verify Bitly plugin version is 2.7.5 or higher in WordPress admin

📡 Detection & Monitoring

Log Indicators:

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

Network Indicators:

  • Malicious script tags in HTTP requests
  • Suspicious redirects from Bitly-shortened links

SIEM Query:

source="wordpress.log" AND "wp-bitly" AND ("script" OR "javascript" OR "onerror" OR "onload")

🔗 References

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