CVE-2025-30545
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the WordPress issuuPress plugin allows attackers to inject malicious scripts into web pages. When users view pages containing the malicious content, the scripts execute in their browsers, potentially stealing session cookies or performing actions on their behalf. All WordPress sites using issuuPress versions up to 1.3.2 are affected.
💻 Affected Systems
- WordPress issuuPress 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
Attackers could steal administrator session cookies, take over WordPress sites, deface websites, or redirect visitors to malicious sites.
Likely Case
Attackers inject malicious scripts that steal user session cookies or credentials when visitors view affected pages.
If Mitigated
With proper input validation and output encoding, malicious scripts are neutralized before reaching user browsers.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited. Attackers need to inject malicious scripts into the WordPress content, which typically requires some level of access (like contributor or author role).
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.3.3 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find issuuPress plugin. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 1.3.3+ from WordPress repository and replace the plugin files.
🔧 Temporary Workarounds
Disable issuuPress plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate issuupress
Implement Content Security Policy
allAdd CSP headers to restrict script execution sources
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Or add to WordPress functions.php: header("Content-Security-Policy: default-src 'self'; script-src 'self'");
🧯 If You Can't Patch
- Remove issuuPress plugin completely and use alternative solutions
- Implement web application firewall (WAF) rules to block XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for issuuPress version. If version is 1.3.2 or earlier, you are vulnerable.Check Version:
wp plugin get issuupress --field=versionVerify Fix Applied:
After updating, verify issuuPress version shows 1.3.3 or later in WordPress plugins list.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WordPress admin-ajax.php or admin-post.php with script tags
- Multiple failed login attempts followed by successful contributor/author login
Network Indicators:
- Outbound connections to suspicious domains from your WordPress server
- Unusual traffic patterns to plugin-specific endpoints
SIEM Query:
source="wordpress.log" AND ("issuupress" OR "admin-ajax.php") AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")