CVE-2022-39265
highpriority · track · 30EPSS 0.031 · 88 %ileEUUSEPSS · scored 2026-10-28
MyBB is a free and open source forum software. The _Mail Settings_ → Additional Parameters for PHP's mail() function mail_parameters setting value, in connection with the configured mail program's options and behavior, may allow access to sensitive information and Remote Code Execution (RCE). The vulnerable module requires Admin CP access with the `_Can manage settings?_` permission and may depend on configured file permissions. MyBB 1.8.31 resolves this issue with the commit `0cd318136a`. Users are advised to upgrade. There are no known workarounds for this vulnerability.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–7.2
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (3)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- BIT-mybb-2022-392652024-03-06vendor · osvUS
MyBB is a free and open source forum software. The _Mail Settings_ → Additional Parameters for PHP's mail() function mail_parameters setting value, in connection with the configured mail program's options and behavior, may allow access to sensitive information and Remote Code Execution (RCE). The vulnerable module requires Admin CP access with the `_Can manage settings?_` permission and may depend on configured file permissions. MyBB 1.8.31 resolves this issue with the commit `0cd318136a`. Users are advised to upgrade. There are no known workarounds for this vulnerability.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (13)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2022-39265/cnnvd
- https://github.com/mybb/mybb/blob/mybb_1830/install/resources/settings.xml#L2331-L2338cnnvd
- https://github.com/mybb/mybb/commit/0cd318136a10b029bb5c8a8f6dddf39d87519797cnnvd
- https://github.com/mybb/mybb/security/advisories/GHSA-hxhm-rq9f-7xj7cnnvd
- https://mybb.com/versions/1.8.31/cnnvd
- https://github.com/mybb/mybb/blob/mybb_1830/install/resources/settings.xml#L2331-L2338enisa_euvd
- https://github.com/mybb/mybb/commit/0cd318136a10b029bb5c8a8f6dddf39d87519797enisa_euvd
- https://github.com/mybb/mybb/security/advisories/GHSA-hxhm-rq9f-7xj7enisa_euvd
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