CVE-2025-47639

7.1 HIGH

📋 TL;DR

This CSRF vulnerability in the Supertext Translation and Proofreading WordPress plugin allows attackers to trick authenticated administrators into performing actions that inject malicious scripts. When exploited, it leads to stored cross-site scripting (XSS) where the malicious scripts persist on the site. All WordPress sites using affected plugin versions are vulnerable.

💻 Affected Systems

Products:
  • Supertext Translation and Proofreading WordPress plugin
Versions: n/a through 4.25
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with the vulnerable plugin enabled. Attack requires administrator interaction.

⚠️ 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 inject persistent malicious scripts that steal administrator credentials, redirect users to malicious sites, or deface the website for all visitors.

🟠

Likely Case

Attackers create fake admin interfaces or forms that trick logged-in administrators into executing actions that inject malicious JavaScript payloads into the site.

🟢

If Mitigated

With proper CSRF tokens and input validation, the attack would fail as unauthorized requests would be rejected.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires tricking an authenticated administrator into clicking a malicious link or visiting a crafted page.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 4.26 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/polylang-supertext/vulnerability/wordpress-supertext-translation-and-proofreading-plugin-4-25-csrf-to-stored-xss-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Supertext Translation and Proofreading'. 4. Click 'Update Now' if available. 5. Alternatively, download version 4.26+ from WordPress repository and manually update.

🔧 Temporary Workarounds

Temporary Plugin Deactivation

all

Disable the vulnerable plugin until patched

wp plugin deactivate supertext-translation-proofreading

CSRF Protection Middleware

all

Implement additional CSRF protection at web server level

🧯 If You Can't Patch

  • Restrict plugin access to trusted administrators only
  • Implement web application firewall rules to block suspicious POST requests to plugin endpoints

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Supertext Translation and Proofreading > Version. If version is 4.25 or lower, you are vulnerable.

Check Version:

wp plugin get supertext-translation-proofreading --field=version

Verify Fix Applied:

After updating, verify plugin version shows 4.26 or higher in WordPress admin plugins page.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to /wp-admin/admin-ajax.php with plugin-specific actions
  • Multiple failed CSRF validation attempts

Network Indicators:

  • Suspicious referrer headers in admin area requests
  • Unexpected JavaScript injection in plugin-related endpoints

SIEM Query:

source="wordpress.log" AND ("supertext" OR "polylang-supertext") AND ("admin-ajax" OR "csrf")

🔗 References

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