CVE-2024-35703
📋 TL;DR
This vulnerability allows attackers to inject malicious scripts into web pages generated by the Sina Extension for Elementor WordPress plugin, leading to stored cross-site scripting (XSS). It affects all versions up to 3.5.3, potentially compromising users who visit affected pages, such as administrators or visitors on WordPress sites using this plugin.
💻 Affected Systems
- Sina Extension for Elementor WordPress plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, redirect users to malicious sites, or perform actions on behalf of authenticated users, leading to full site compromise or data theft.
Likely Case
Attackers inject scripts to deface pages, steal user credentials, or hijack admin sessions, causing reputational damage and unauthorized access.
If Mitigated
With proper input validation and output encoding, the risk is reduced to minimal, preventing script execution and limiting impact to low-severity issues.
🎯 Exploit Status
XSS vulnerabilities are often easy to exploit with basic web knowledge, but no specific proof-of-concept has been publicly disclosed for this CVE.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 3.5.3 (check for updates)
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Go to Plugins > Installed Plugins. 3. Find 'Sina Extension for Elementor' and update to the latest version. 4. Verify the update completes successfully.
🔧 Temporary Workarounds
Disable or Remove Plugin
allTemporarily disable or uninstall the Sina Extension for Elementor plugin to prevent exploitation until patched.
wp plugin deactivate sina-extension-for-elementor
wp plugin delete sina-extension-for-elementor
Implement WAF Rules
allConfigure a web application firewall (WAF) to block XSS payloads targeting the plugin endpoints.
Depends on WAF platform; e.g., for ModSecurity: add rules to detect and block script injections.
🧯 If You Can't Patch
- Restrict access to the plugin's admin interface to trusted IP addresses only.
- Monitor web logs for unusual activity or script injection attempts and implement regular security audits.
🔍 How to Verify
Check if Vulnerable:
Check the plugin version in WordPress admin under Plugins > Installed Plugins; if version is 3.5.3 or earlier, it is vulnerable.Check Version:
wp plugin get sina-extension-for-elementor --field=versionVerify Fix Applied:
After updating, confirm the plugin version is higher than 3.5.3 and test for XSS by attempting to inject scripts in input fields.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests with script tags or JavaScript code to plugin-specific endpoints.
- Errors related to input validation in web server logs.
Network Indicators:
- HTTP requests containing malicious payloads like <script>alert('XSS')</script> to the plugin's URLs.
SIEM Query:
source="web_logs" AND (url="*sina-extension*" AND (payload="*<script>*" OR payload="*javascript:*"))🔗 References
- https://patchstack.com/database/vulnerability/sina-extension-for-elementor/wordpress-sina-extension-for-elementor-plugin-3-5-3-cross-site-scripting-xss-vulnerability?_s_id=cve
- https://patchstack.com/database/vulnerability/sina-extension-for-elementor/wordpress-sina-extension-for-elementor-plugin-3-5-3-cross-site-scripting-xss-vulnerability?_s_id=cve
