CVE-2025-66092

6.5 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the Accordion Slider WordPress 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 Accordion Slider version 1.9.13 or earlier. Attackers can steal session cookies, redirect users, or perform actions on behalf of authenticated users.

💻 Affected Systems

Products:
  • bqworks Accordion Slider WordPress Plugin
Versions: All versions up to and including 1.9.13
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations using the vulnerable plugin versions are affected regardless of configuration.

⚠️ 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 credentials, take over the WordPress site, install backdoors, deface the website, or use the compromised site to attack visitors.

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies, redirect users to phishing sites, or perform actions as authenticated users.

🟢

If Mitigated

With proper input validation and output encoding, the 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 and weaponized. While no public PoC is confirmed, the vulnerability type is well-understood and easy to exploit.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.9.14 or later

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/accordion-slider/vulnerability/wordpress-accordion-slider-plugin-1-9-13-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 'Accordion Slider' and click 'Update Now'. 4. Verify the plugin version is 1.9.14 or higher.

🔧 Temporary Workarounds

Disable Accordion Slider Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate accordion-slider

Implement WAF Rules

all

Add web application firewall rules to block XSS payloads targeting the plugin

🧯 If You Can't Patch

  • Disable the Accordion Slider plugin immediately
  • Implement strict Content Security Policy (CSP) headers to mitigate XSS impact

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Accordion Slider version. If version is 1.9.13 or lower, you are vulnerable.

Check Version:

wp plugin get accordion-slider --field=version

Verify Fix Applied:

After updating, verify the plugin shows version 1.9.14 or higher in WordPress admin.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to accordion-slider endpoints
  • JavaScript payloads in plugin-related requests
  • Multiple failed XSS attempts

Network Indicators:

  • Malicious script tags in HTTP requests to accordion-slider endpoints
  • Unexpected redirects from accordion slider pages

SIEM Query:

source="wordpress.log" AND "accordion-slider" AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")

🔗 References

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