mybb vulnerabilities
Recent CVEs affecting mybb products. 4 tracked.
mybb has 4 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 2. Most recent: 2026-04-04. Highest priority: CVE-2018-25250 (score 38/100).
- CVE-2018-25250 HIGH 7.2 UPGRADE MyBB Last User's Threads in Profile Plugin 1.2 contains a persistent cross-site scripting vulnerability that a
- CVE-2018-25249 MEDIUM 6.4 DOWNGRADE MyBB My Arcade Plugin 1.3 contains a persistent cross-site scripting vulnerability that allows authenticated u
- CVE-2018-25247 MEDIUM 6.1 UPGRADE MyBB Like Plugin 3.0.0 contains a stored cross-site scripting vulnerability
- CVE-2018-25248 HIGH 7.2 DOWNGRADE MyBB Downloads Plugin 2.0.3 contains a persistent cross-site scripting vulnerability that allows regular membe
FAQ
How do I fix mybb 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 mybb being exploited right now?
None of the tracked mybb CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which mybb CVE should I patch first?
CVE-2018-25250 currently ranks highest (38/100): MyBB Last User's Threads in Profile Plugin 1.2 contains a persistent cross-site scripting vulnerability that a.