--- title: "CVE-2022-24734: Remote code execution in mybb | CubePath" description: "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…" language: en source: https://cubepath.com/security/cve/CVE-2022-24734 --- # CVE-2022-24734: Remote code execution in mybb | CubePath ## Description 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. Official description from the CVE record, published by GitHub\_M. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2022-24734) ## Key data ### CVSS 3.1 High 7.2 Score published by GitHub\_M in the CVE record. CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | Metric | Value | What it means | | ---------------------- | --------- | ----------------------------------------------------------------------------------- | | Attack vector | Network | The vulnerable component can be reached over a network, possibly from the Internet. | | Attack complexity | Low | No special conditions are needed. The attack can be repeated at will. | | Privileges required | High | An account with significant privileges, such as an administrator, is needed. | | User interaction | None | No action from any user is needed. | | Scope | Unchanged | The impact stays within the vulnerable component. | | Confidentiality impact | High | Serious or total effect on the secrecy of data. | | Integrity impact | High | Serious or total effect on the trustworthiness of data. | | Availability impact | High | Serious or total effect on availability. | CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) . ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.77827 (77.8% probability) Percentile 99.6% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA assessment as of Apr 22, 2025 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Exploitation Public proof of concept recorded by CISA Automatable no Technical impact total ### Weakness (CWE) CWE catalog version 5.0. CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license. - [CWE-94](https://cwe.mitre.org/data/definitions/94.html) Improper Control of Generation of Code ## Affected products Products listed in the CVE record, as the CNA published them. - mybb - affected: >= 1.2.0, < 1.8.30 ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [github.com/mybb/mybb/security/advisories/GHSA-876v-gwgh-w57f](https://github.com/mybb/mybb/security/advisories/GHSA-876v-gwgh-w57f) - [github.com/mybb/mybb/commit/92012b9831b330714b9f9b4646a9878…](https://github.com/mybb/mybb/commit/92012b9831b330714b9f9b4646a98784113489c1) - [mybb.com/versions/1.8.30](https://mybb.com/versions/1.8.30/) - [zerodayinitiative.com/advisories/ZDI-22-503](https://www.zerodayinitiative.com/advisories/ZDI-22-503/) - [packetstormsecurity.com/files/167082/MyBB-1.8.29-Remote-Cod…](http://packetstormsecurity.com/files/167082/MyBB-1.8.29-Remote-Code-Execution.html) - [packetstormsecurity.com/files/167333/MyBB-Admin-Control-Rem…](http://packetstormsecurity.com/files/167333/MyBB-Admin-Control-Remote-Code-Execution.html) ## Timeline 1. ID reserved Feb 10, 2022 2. Record published Mar 9, 2022 3. Record last updated Apr 22, 2025 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 20:02 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)