CVE-2025-30922
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the Simplebooklet PDF Viewer and Embedder WordPress plugin allows attackers to inject malicious scripts into web pages. When users view pages containing the injected scripts, the attacker can steal session cookies, redirect users, or perform actions on their behalf. All WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- Simplebooklet PDF Viewer and Embedder WordPress 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, install backdoors, deface websites, or redirect visitors to malicious sites.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies, potentially compromising user accounts and performing unauthorized actions.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before reaching users' browsers.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited, though specific exploit details for this CVE aren't publicly documented.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 1.1.1
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Simplebooklet PDF Viewer and Embedder. 4. Click 'Update Now' if available. 5. Alternatively, delete and reinstall the latest version from WordPress repository.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
Content Security Policy
linuxImplement CSP headers to restrict script execution sources
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to nginx config: add_header Content-Security-Policy "default-src 'self'; script-src 'self'";
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads
- Restrict plugin access to trusted users only using WordPress roles
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Simplebooklet PDF Viewer and Embedder → Version numberCheck Version:
wp plugin list --name=simplebooklet --field=versionVerify Fix Applied:
Verify plugin version is higher than 1.1.1 in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to plugin endpoints with script tags
- Multiple failed login attempts following plugin access
Network Indicators:
- Outbound connections to suspicious domains from WordPress server
- Unexpected JavaScript payloads in HTTP responses
SIEM Query:
source="wordpress.log" AND "simplebooklet" AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")