CVE-2025-22807

6.5 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the Responsive Flickr Slideshow WordPress plugin allows attackers to inject malicious scripts into web pages. When users view pages containing the compromised slideshow, the scripts execute in their browsers. All WordPress sites using vulnerable versions of this plugin are affected.

💻 Affected Systems

Products:
  • Responsive Flickr Slideshow WordPress plugin
Versions: All versions up to and including 2.6.0
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with the vulnerable plugin enabled. The plugin must be configured to display Flickr slideshows.

⚠️ 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.

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies or credentials, potentially compromising user accounts.

🟢

If Mitigated

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

🌐 Internet-Facing: HIGH
🏢 Internal Only: LOW

🎯 Exploit Status

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

Stored XSS vulnerabilities are commonly exploited. Attackers need to inject malicious payloads into the slideshow content.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.6.1 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/mobile-friendly-flickr-slideshow/vulnerability/wordpress-responsive-flickr-slideshow-plugin-2-6-0-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 'Responsive Flickr Slideshow'. 4. Click 'Update Now' if available. 5. If no update appears, manually download version 2.6.1+ from WordPress.org and replace the plugin files.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate responsive-flickr-slideshow

Content Security Policy

all

Implement CSP headers to restrict script execution

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

  • Remove the plugin entirely from your WordPress installation
  • Implement web application firewall (WAF) rules to block XSS payloads

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for 'Responsive Flickr Slideshow' version 2.6.0 or earlier

Check Version:

wp plugin get responsive-flickr-slideshow --field=version

Verify Fix Applied:

Verify plugin version is 2.6.1 or higher in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to plugin endpoints
  • Suspicious JavaScript in Flickr-related content

Network Indicators:

  • Malicious script tags in HTTP responses containing 'flickr' or 'slideshow'

SIEM Query:

source="wordpress.log" AND ("responsive-flickr-slideshow" OR "flickr-slideshow") AND ("<script>" OR "javascript:")

🔗 References

📤 Share & Export