CVE-2025-22825

6.5 MEDIUM

📋 TL;DR

A stored cross-site scripting (XSS) vulnerability in the WP Desk Flexible PDF Coupons 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. This affects all WordPress sites using vulnerable versions of the Flexible PDF Coupons plugin.

💻 Affected Systems

Products:
  • WP Desk Flexible PDF Coupons WordPress Plugin
Versions: All versions up to 1.10.3
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with the Flexible PDF Coupons plugin enabled. The vulnerability exists in the plugin's input handling during web page generation.

⚠️ 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 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.

🌐 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 mentioned, the vulnerability type is well-understood and easily weaponized.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.10.4 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/flexible-coupons/vulnerability/wordpress-flexible-pdf-coupons-plugin-1-10-3-stored-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 'Flexible PDF Coupons' and click 'Update Now'. 4. Verify the plugin version is 1.10.4 or higher.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate flexible-coupons

Implement WAF Rules

all

Add web application firewall rules to block XSS payloads

🧯 If You Can't Patch

  • Implement strict Content Security Policy (CSP) headers to limit script execution
  • Enable WordPress security plugins with XSS protection features

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Flexible PDF Coupons > Version. If version is 1.10.3 or lower, you are vulnerable.

Check Version:

wp plugin get flexible-coupons --field=version

Verify Fix Applied:

After updating, verify the plugin version shows 1.10.4 or higher in WordPress admin.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to plugin endpoints containing script tags or JavaScript
  • Multiple failed XSS attempts in web server logs

Network Indicators:

  • HTTP requests with suspicious parameters containing <script> tags or JavaScript events

SIEM Query:

source="web_server" AND ("flexible-coupons" OR "flexible-pdf") AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")

🔗 References

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