CVE-2024-3549
📋 TL;DR
This SQL injection vulnerability in the Blog2Social WordPress plugin allows authenticated attackers with subscriber-level access or higher to inject malicious SQL queries via the 'b2sSortPostType' parameter. This can lead to unauthorized data extraction from the WordPress database, potentially exposing sensitive information like user credentials, private posts, or configuration data.
💻 Affected Systems
- Blog2Social: Social Media Auto Post & Scheduler WordPress plugin
📦 What is this software?
Blog2social by Adenion
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including extraction of administrator credentials, private user data, and potentially full site takeover through privilege escalation.
Likely Case
Extraction of sensitive user data, private posts, and configuration information leading to data breach and potential credential theft.
If Mitigated
Limited data exposure if proper input validation and parameterized queries are implemented, with minimal impact on site functionality.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward due to the direct SQL injection vector. Public proof-of-concept code is available in security advisories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 7.4.2 and later
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3069574/blog2social/trunk/includes/B2S/Post/Item.php
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Blog2Social plugin. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 7.4.2+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Temporary Plugin Deactivation
allDisable the vulnerable plugin until patched version can be installed
wp plugin deactivate blog2social
Input Validation via WAF
allBlock SQL injection attempts targeting the b2sSortPostType parameter
🧯 If You Can't Patch
- Restrict user registration and review existing user accounts for suspicious activity
- Implement web application firewall rules to block SQL injection patterns targeting the vulnerable parameter
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins for Blog2Social version. If version is 7.4.1 or earlier, you are vulnerable.Check Version:
wp plugin get blog2social --field=versionVerify Fix Applied:
After updating, verify Blog2Social plugin shows version 7.4.2 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in WordPress debug logs
- Multiple failed login attempts followed by successful subscriber login
- Database queries containing 'b2sSortPostType' with unusual values
Network Indicators:
- POST requests to wp-admin/admin-ajax.php with b2sSortPostType parameter containing SQL injection patterns
SIEM Query:
source="wordpress.log" AND "b2sSortPostType" AND ("UNION" OR "SELECT" OR "FROM" OR "WHERE" OR "--" OR "' OR '")🔗 References
- https://plugins.trac.wordpress.org/changeset/3069574/blog2social/trunk/includes/B2S/Post/Item.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/3b472eb8-9808-4a50-b2b4-0b0b3256053f?source=cve
- https://plugins.trac.wordpress.org/changeset/3069574/blog2social/trunk/includes/B2S/Post/Item.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/3b472eb8-9808-4a50-b2b4-0b0b3256053f?source=cve
