CVE-2019-12830 - 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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HIGH

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

Published Jun 15, 2019

8.7

HIGH

CVSS 3.0

EPSS 0.96%

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 products

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-79

Cross-site Scripting (XSS)

References (3)

https://blog.mybb.com/2019/06/10/mybb-1-8-21-released-security-maintenance-release/
x_refsource_MISCRelease NotesThird Party Advisory
https://blog.ripstech.com/2019/mybb-stored-xss-to-rce/
x_refsource_MISCExploitVendor Advisory
https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-4410
Advisory

Link	Providers	Tags
https://blog.mybb.com/2019/06/10/mybb-1-8-21-released-security-maintenance-release/		x_refsource_MISCRelease NotesThird Party Advisory
https://blog.ripstech.com/2019/mybb-stored-xss-to-rce/		x_refsource_MISCExploitVendor Advisory
https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-4410		Advisory