High severity8.7NVD Advisory· Published Jun 15, 2019· Updated Jun 17, 2026
CVE-2019-12830
CVE-2019-12830
Description
In MyBB before 1.8.21, an attacker can exploit a parsing flaw in the Private Message / Post renderer that leads to [video] BBCode persistent XSS to take over any forum account, aka a nested video MyCode issue.
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Affected products
3- MyBB/MyBBdescription
Patches
Vulnerability mechanics
References
2- blog.ripstech.com/2019/mybb-stored-xss-to-rce/nvdExploitVendor Advisory
- blog.mybb.com/2019/06/10/mybb-1-8-21-released-security-maintenance-release/nvdRelease NotesThird Party Advisory
News mentions
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