simple machines forum vulnerabilities and fixes
Recent CVEs affecting simple machines forum, with upgrade or downgrade steps. 1 tracked.
Also searched as: simplemachinesforum.
simple machines forum has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 0. Most recent: 2025-12-18. Highest priority: CVE-2025-67163 (score 25/100).
- CVE-2025-67163 MEDIUM 6.1 DOWNGRADE A stored cross-site scripting (XSS) vulnerability in Simple Machines Forum v2.1.6 allows attackers to execute
FAQ
How do I fix simple machines forum vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is simple machines forum being exploited right now?
None of the tracked simple machines forum CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which simple machines forum CVE should I patch first?
CVE-2025-67163 currently ranks highest (25/100): A stored cross-site scripting (XSS) vulnerability in Simple Machines Forum v2.1.6 allows attackers to execute .