Vulnerability Monitor

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CVE-2022-39265

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.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.2, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 1 product from mybb organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2022, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2022-10-06T18:16:12.163

Last Modified

2024-11-21T07:17:54.837

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.2 (HIGH)

Weaknesses

Type: Secondary
CWE-74
Type: Primary
CWE-77

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mybb	mybb	< 1.8.31	Yes

References

https://github.com/mybb/mybb/blob/mybb_1830/install/resources/settings.xml#L2331-L2338 Exploit, Third Party Advisory ([email protected])
https://github.com/mybb/mybb/commit/0cd318136a10b029bb5c8a8f6dddf39d87519797 Patch, Third Party Advisory ([email protected])
https://github.com/mybb/mybb/security/advisories/GHSA-hxhm-rq9f-7xj7 Third Party Advisory ([email protected])
https://mybb.com/versions/1.8.31/ Release Notes, Vendor Advisory ([email protected])
https://github.com/mybb/mybb/blob/mybb_1830/install/resources/settings.xml#L2331-L2338 Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/mybb/mybb/commit/0cd318136a10b029bb5c8a8f6dddf39d87519797 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/mybb/mybb/security/advisories/GHSA-hxhm-rq9f-7xj7 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://mybb.com/versions/1.8.31/ Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For mybb's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.