CVE-2025-10136

6.4 MEDIUM

📋 TL;DR

The TweetThis Shortcode WordPress plugin has a stored XSS vulnerability that allows authenticated attackers with contributor-level access or higher to inject malicious scripts into website pages. These scripts execute whenever users view the compromised pages, potentially stealing credentials or performing unauthorized actions. All WordPress sites using this plugin up to version 1.8.0 are affected.

💻 Affected Systems

Products:
  • TweetThis Shortcode WordPress Plugin
Versions: All versions up to and including 1.8.0
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with plugin enabled and at least one user with contributor-level access.

⚠️ 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 credentials, deface websites, redirect users to malicious sites, or install backdoors for persistent access.

🟠

Likely Case

Attackers with contributor accounts inject malicious scripts to steal user session cookies or credentials, potentially escalating privileges.

🟢

If Mitigated

With proper access controls and input validation, impact is limited to isolated script execution without data compromise.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Requires authenticated access (contributor or higher) and ability to create/edit posts with shortcodes.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 1.8.0

Vendor Advisory: https://wordpress.org/plugins/tweetthis-shortcode/

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find TweetThis Shortcode plugin. 4. Click 'Update Now' if update available. 5. If no update, deactivate and delete plugin, then install latest version from WordPress repository.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily deactivate the vulnerable plugin until patched

wp plugin deactivate tweetthis-shortcode

Restrict User Roles

all

Remove contributor-level access from untrusted users

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block XSS payloads
  • Enable Content Security Policy (CSP) headers to restrict script execution

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for TweetThis Shortcode version 1.8.0 or earlier

Check Version:

wp plugin get tweetthis-shortcode --field=version

Verify Fix Applied:

Verify plugin version is greater than 1.8.0 in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unusual post/page edits by contributor-level users
  • Shortcode attributes containing script tags or JavaScript

Network Indicators:

  • Unexpected script loads from WordPress pages
  • Suspicious outbound connections from user browsers

SIEM Query:

source="wordpress" AND (plugin="tweetthis-shortcode" AND version<="1.8.0") OR (event="post_edit" AND user_role="contributor" AND content CONTAINS "tweetthis")

🔗 References

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