CVE-2025-28926
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the WordPress Post Read Time plugin allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. The vulnerability affects all WordPress sites using Post Read Time plugin versions up to 1.2.6. Attackers can potentially steal session cookies, redirect users to malicious sites, or perform actions on behalf of authenticated users.
💻 Affected Systems
- WordPress Post Read Time plugin
⚠️ 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.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
An attacker could steal administrator session cookies, take over the WordPress site, install backdoors, deface the site, or use the compromised site to attack visitors.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies or redirect users to phishing/malware sites, potentially compromising user accounts and data.
If Mitigated
With proper input validation and output encoding, the malicious scripts would be rendered harmless as text rather than executable code.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited and weaponization is likely given the public disclosure and WordPress plugin popularity.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.2.7 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Post Read Time' plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete plugin, then install fresh version from WordPress repository.
🔧 Temporary Workarounds
Disable Post Read Time Plugin
allTemporarily disable the vulnerable plugin until patched version is available
wp plugin deactivate post-read-time
Implement WAF Rules
allAdd web application firewall rules to block XSS payloads targeting the vulnerable endpoint
🧯 If You Can't Patch
- Disable the Post Read Time plugin immediately
- Implement strict Content Security Policy (CSP) headers to mitigate XSS impact
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins → Post Read Time version. If version is 1.2.6 or earlier, you are vulnerable.Check Version:
wp plugin get post-read-time --field=versionVerify Fix Applied:
After updating, verify plugin version shows 1.2.7 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WordPress admin-ajax.php or plugin endpoints containing JavaScript payloads
- Multiple failed login attempts followed by successful admin login from new IP
Network Indicators:
- Outbound connections to suspicious domains from your WordPress server
- Unexpected JavaScript in HTTP responses from your site
SIEM Query:
source="wordpress.log" AND ("post-read-time" OR "admin-ajax.php") AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")