CVE-2025-67536

6.5 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the LearnPress WordPress plugin allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. It affects all LearnPress installations up to version 4.2.9.4. WordPress sites using vulnerable LearnPress versions are at risk.

💻 Affected Systems

Products:
  • ThimPress LearnPress WordPress Plugin
Versions: All versions up to and including 4.2.9.4
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects WordPress installations with LearnPress plugin enabled. No special configuration required.

⚠️ 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 admin accounts, deface websites, or redirect users to malicious sites, potentially leading to complete site compromise.

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies or credentials, perform actions on behalf of authenticated users, or display phishing content.

🟢

If Mitigated

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

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Stored XSS vulnerabilities are commonly exploited. While no public PoC is confirmed, the vulnerability type suggests exploitation is straightforward for attackers with basic web skills.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 4.2.9.5 or later

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/learnpress/vulnerability/wordpress-learnpress-plugin-4-2-9-4-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 LearnPress and click 'Update Now' if available. 4. Alternatively, download latest version from WordPress.org and manually update.

🔧 Temporary Workarounds

Temporary Plugin Deactivation

all

Disable LearnPress plugin until patched to prevent exploitation

wp plugin deactivate learnpress

Content Security Policy (CSP)

all

Implement CSP headers to restrict script execution sources

Add 'Content-Security-Policy' header to web server configuration

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block XSS payloads
  • Restrict plugin access to trusted users only using role-based controls

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for LearnPress version

Check Version:

wp plugin get learnpress --field=version

Verify Fix Applied:

Verify LearnPress version is 4.2.9.5 or higher after update

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to LearnPress endpoints with script tags
  • Multiple failed login attempts after suspicious plugin activity

Network Indicators:

  • HTTP requests containing script injection patterns to LearnPress URLs

SIEM Query:

web_requests WHERE url CONTAINS 'learnpress' AND (body CONTAINS '<script>' OR body CONTAINS 'javascript:')

🔗 References

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