CVE-2022-1453
📋 TL;DR
The RSVPMaker WordPress plugin contains an unauthenticated SQL injection vulnerability that allows attackers to execute arbitrary SQL queries against the database. This affects all WordPress sites running RSVPMaker version 9.2.5 or earlier, potentially exposing sensitive data like user credentials, payment information, and other stored content.
💻 Affected Systems
- RSVPMaker WordPress Plugin
📦 What is this software?
Rsvpmaker by Carrcommunications
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, privilege escalation, site defacement, or full system takeover if database permissions allow file system access.
Likely Case
Attackers steal sensitive information from the database including user credentials, personal data, and plugin-specific information.
If Mitigated
Limited information disclosure if database permissions are properly restricted and other security controls are in place.
🎯 Exploit Status
SQL injection is well-understood and weaponized tools exist. The unauthenticated nature makes exploitation trivial.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 9.2.6 and later
Vendor Advisory: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2714389%40rsvpmaker&new=2714389%40rsvpmaker&sfp_email=&sfph_mail=
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find RSVPMaker and click 'Update Now'. 4. Alternatively, download version 9.2.6+ from WordPress plugin repository and replace the plugin files.
🔧 Temporary Workarounds
Disable RSVPMaker Plugin
allTemporarily disable the vulnerable plugin until patching is possible.
wp plugin deactivate rsvpmaker
Web Application Firewall Rule
allBlock SQL injection attempts targeting RSVPMaker endpoints.
🧯 If You Can't Patch
- Disable RSVPMaker plugin immediately
- Implement network-level restrictions to block external access to WordPress admin and plugin endpoints
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for RSVPMaker version. If version is 9.2.5 or earlier, you are vulnerable.Check Version:
wp plugin get rsvpmaker --field=versionVerify Fix Applied:
Verify RSVPMaker version is 9.2.6 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts following SQL errors
- Requests to rsvpmaker-util.php with SQL syntax in parameters
Network Indicators:
- HTTP requests containing SQL keywords (SELECT, UNION, etc.) targeting RSVPMaker endpoints
- Unusual outbound database connections from web server
SIEM Query:
source="web_logs" AND (uri="*rsvpmaker*" AND (query="*SELECT*" OR query="*UNION*" OR query="*OR 1=1*"))🔗 References
- https://github.com/davidfcarr/rsvpmaker/commit/bfb189f49af7ab0d34499a2da772e3266f72167d
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2714389%40rsvpmaker&new=2714389%40rsvpmaker&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/6031edec-4274-4e42-9e3a-ce0c94958b17?source=cve
- https://www.wordfence.com/vulnerability-advisories/#CVE-2022-1453
- https://github.com/davidfcarr/rsvpmaker/commit/bfb189f49af7ab0d34499a2da772e3266f72167d
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2714389%40rsvpmaker&new=2714389%40rsvpmaker&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/6031edec-4274-4e42-9e3a-ce0c94958b17?source=cve
- https://www.wordfence.com/vulnerability-advisories/#CVE-2022-1453
