CVE-2025-52739

7.1 HIGH

📋 TL;DR

This is a reflected cross-site scripting (XSS) vulnerability in the Sala WordPress theme that allows attackers to inject malicious scripts into web pages. When exploited, it can enable session hijacking, credential theft, or website defacement. All WordPress sites using Sala theme versions up to 1.1.3 are affected.

💻 Affected Systems

Products:
  • Sala WordPress Theme
Versions: All versions up to and including 1.1.3
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with Sala theme active. Vulnerability is in theme code, not core WordPress.

⚠️ 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 the entire web server.

🟠

Likely Case

Attackers craft malicious URLs containing JavaScript payloads that execute when victims click them, allowing session cookie theft, credential harvesting, or limited website defacement.

🟢

If Mitigated

With proper input validation and output encoding, malicious scripts are neutralized before reaching users, preventing successful exploitation.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Reflected XSS vulnerabilities are commonly exploited via crafted URLs. No authentication required to trigger the vulnerability.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.1.4 or later

Vendor Advisory: https://patchstack.com/database/wordpress/theme/sala/vulnerability/wordpress-sala-theme-1-1-3-cross-site-scripting-xss-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Appearance > Themes. 3. Find Sala theme and click 'Update Now' if available. 4. If manual update needed, download latest version from WordPress.org or vendor. 5. Upload via FTP or WordPress uploader. 6. Activate updated theme.

🔧 Temporary Workarounds

Input Validation Filter

all

Add custom input validation to sanitize user inputs before processing

Add sanitization filters in theme functions.php: esc_html($_GET['parameter']) or sanitize_text_field($_GET['parameter'])

Content Security Policy

all

Implement CSP headers to restrict script execution sources

Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Or add to WordPress functions.php: header("Content-Security-Policy: default-src 'self'; script-src 'self'");

🧯 If You Can't Patch

  • Disable or replace Sala theme with alternative secure theme
  • Implement web application firewall (WAF) with XSS protection rules

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Appearance > Themes for Sala theme version. If version is 1.1.3 or lower, system is vulnerable.

Check Version:

In WordPress admin: Appearance > Themes, or check style.css in theme directory for Version: header

Verify Fix Applied:

After update, verify Sala theme version shows 1.1.4 or higher in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual GET/POST requests with script tags or JavaScript code in parameters
  • Multiple failed XSS attempts in web server logs
  • Requests to known vulnerable theme endpoints with suspicious parameters

Network Indicators:

  • HTTP requests containing <script>, javascript:, or encoded XSS payloads in URL parameters
  • Traffic patterns showing repeated requests to same endpoint with varying malicious parameters

SIEM Query:

source="web_server_logs" AND (uri="*<script>*" OR uri="*javascript:*" OR uri="*%3Cscript%3E*") AND uri="*sala*"

🔗 References

📤 Share & Export