CVEvulnerability
CVE-2019-12830
8.7 HIGH
Official page ↗
- Status
- Modified
- Published
- 2019-06-15
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 8.7 HIGH — CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
- CVSS 2.0 ([email protected])
- 3.5 LOW — AV:N/AC:M/Au:S/C:N/I:P/A:N
- Weaknesses
- CWE-79
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.
Affected configurations
• mybb mybb (< 1.8.21)
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://blog.mybb.com/2019/06/10/mybb-1-8-21-released-security-maintenance-release/ Release Notes, Third Party Advisory
- https://blog.ripstech.com/2019/mybb-stored-xss-to-rce/ Exploit, Vendor Advisory
- https://blog.mybb.com/2019/06/10/mybb-1-8-21-released-security-maintenance-release/ Release Notes, Third Party Advisory
- https://blog.ripstech.com/2019/mybb-stored-xss-to-rce/ Exploit, Vendor Advisory