CVE-2025-23876

6.5 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the WP krpano 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 WP krpano plugin versions up to and including 1.2.1. Attackers can steal session cookies, redirect users to malicious sites, or perform actions on behalf of authenticated users.

💻 Affected Systems

Products:
  • WP krpano WordPress plugin
Versions: n/a through 1.2.1
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations with the vulnerable plugin version 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 session cookies, take over WordPress sites, install backdoors, deface websites, or redirect visitors to malicious sites that distribute malware.

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies, redirect users to phishing pages, or perform actions on behalf of authenticated users without their knowledge.

🟢

If Mitigated

With proper input validation and output encoding, malicious scripts would be neutralized before being stored or displayed to 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 easily exploitable.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.2.2 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/wp-krpano/vulnerability/wordpress-wp-krpano-plugin-1-2-1-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 WP krpano plugin. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 1.2.2+ from WordPress repository and manually update.

🔧 Temporary Workarounds

Disable WP krpano plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate wp-krpano

Implement WAF rules

all

Configure web application firewall to block XSS payloads targeting krpano parameters

🧯 If You Can't Patch

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

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Installed Plugins for WP krpano version. If version is 1.2.1 or earlier, you are vulnerable.

Check Version:

wp plugin get wp-krpano --field=version

Verify Fix Applied:

After updating, verify WP krpano plugin version shows 1.2.2 or later in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to krpano-related endpoints
  • JavaScript payloads in request parameters
  • Multiple failed XSS attempts

Network Indicators:

  • Malicious script tags in HTTP requests to WordPress
  • Unusual outbound connections after page views

SIEM Query:

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

🔗 References

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