CVE-2025-68076

6.5 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the Stockholm Core WordPress plugin allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. It affects all WordPress sites using Stockholm Core versions up to and including 2.4.6. The vulnerability requires user interaction but can lead to session hijacking, credential theft, or website defacement.

💻 Affected Systems

Products:
  • Select-Themes Stockholm Core WordPress plugin
Versions: All versions up to and including 2.4.6
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires the Stockholm Core plugin to be installed and active on a WordPress site. The vulnerability is 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 credentials, take over the WordPress site, install backdoors, or redirect visitors to malicious sites, potentially compromising all site users.

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies, perform actions on behalf of authenticated users, or deface website content.

🟢

If Mitigated

With proper input validation and output encoding, the malicious payloads would be neutralized before reaching users, preventing script execution.

🌐 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 weaponization is likely given the prevalence of WordPress sites.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Versions after 2.4.6

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/stockholm-core/vulnerability/wordpress-stockholm-core-plugin-2-4-6-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 'Stockholm Core' and check if update is available. 4. Click 'Update Now' to install the latest version. 5. Verify the plugin version is greater than 2.4.6.

🔧 Temporary Workarounds

Temporarily disable plugin

all

Deactivate the Stockholm Core plugin until patched, though this may break site functionality.

wp plugin deactivate stockholm-core

Implement WAF rules

all

Configure web application firewall to block XSS payloads targeting the vulnerable endpoints.

🧯 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 → Installed Plugins → Stockholm Core version. If version is 2.4.6 or lower, the site is vulnerable.

Check Version:

wp plugin get stockholm-core --field=version

Verify Fix Applied:

After updating, verify Stockholm Core version is greater than 2.4.6 in the WordPress plugins list.

📡 Detection & Monitoring

Log Indicators:

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

Network Indicators:

  • HTTP requests with suspicious parameters containing <script>, javascript:, or encoded payloads

SIEM Query:

source="web_server_logs" AND ("stockholm-core" OR "wp-content/plugins/stockholm-core") AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")

🔗 References

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