CVE-2022-24734
mediumpriority · attend · 66EPSS 0.778 · 100 %ileexploit · weaponizedEURUUSEPSS · scored 2026-10-28
MyBB is a free and open source forum software. In affected versions the Admin CP's Settings management module does not validate setting types correctly on insertion and update, making it possible to add settings of supported type `php` with PHP code, executed on on _Change Settings_ pages. This results in a Remote Code Execution (RCE) vulnerability. The vulnerable module requires Admin CP access with the `Can manage settings?` permission. MyBB's Settings module, which allows administrators to add, edit, and delete non-default settings, stores setting data in an options code string ($options_code; mybb_settings.optionscode database column) that identifies the setting type and its options, separated by a new line character (\n). In MyBB 1.2.0, support for setting type php was added, for which the remaining part of the options code is PHP code executed on Change Settings pages (reserved for plugins and internal use). MyBB 1.8.30 resolves this issue. There are no known workarounds.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–7.2
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (4)
Public proof-of-concept and weaponised exploit code.
- exploit/multi/http/mybb_rce_cve_2022_24734MyBB Admin Control Code Injection RCEweaponized · metasploit
- Altelus1/CVE-2022-24734CVE-2022-24734 PoCPoC · poc_in_github
- lavclash75/mybb-CVE-2022-24734MyBB 1.8.29 - Remote Code ExecutionPoC · poc_in_github
affected products (4)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- BIT-mybb-2022-247342024-03-06vendor · osvUS
MyBB is a free and open source forum software. In affected versions the Admin CP's Settings management module does not validate setting types correctly on insertion and update, making it possible to add settings of supported type `php` with PHP code, executed on on _Change Settings_ pages. This results in a Remote Code Execution (RCE) vulnerability. The vulnerable module requires Admin CP access with the `Can manage settings?` permission. MyBB's Settings module, which allows administrators to add, edit, and delete non-default settings, stores setting data in an options code string ($options_code; mybb_settings.optionscode database column) that identifies the setting type and its options, separated by a new line character (\n). In MyBB 1.2.0, support for setting type php was added, for which the remaining part of the options code is PHP code executed on Change Settings pages (reserved for plugins and internal use). MyBB 1.8.30 resolves this issue. There are no known workarounds.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (23)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2022-24734/cnnvd
- https://cxsecurity.com/issue/WLB-2022050061cnnvd
- https://cxsecurity.com/issue/WLB-2022050094cnnvd
- https://github.com/mybb/mybb/commit/92012b9831b330714b9f9b4646a98784113489c1cnnvd
- https://github.com/mybb/mybb/security/advisories/GHSA-876v-gwgh-w57fcnnvd
- https://mybb.com/versions/1.8.30/cnnvd
- https://packetstormsecurity.com/files/167082/MyBB-1.8.29-Remote-Code-Execution.htmlcnnvd
- https://packetstormsecurity.com/files/167333/MyBB-Admin-Control-Remote-Code-Execution.htmlcnnvd
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