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CVE-2010-4626
The my_rand function in functions.php in MyBB (aka MyBulletinBoard) before 1.4.12 does not properly use the PHP mt_rand function, which…
Medium5.1EPSS 2.2%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The my_rand function in functions.php in MyBB (aka MyBulletinBoard) before 1.4.12 does not properly use the PHP mt_rand function, which makes it easier for remote attackers to obtain access to an arbitrary account by requesting a reset of the account's password, and then conducting a brute-force attack.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.1 | AV:N/AC:H/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 2.2% · top 18% of all CVEs (4 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.1.
Weakness
Affected products
n/a
- affected n/a
References (7)
- http://dev.mybboard.net/issues/843 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://blog.mybb.com/2010/04/13/mybb-1-4-12-released-security-maintenance-update/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20101008 CVE request: mybb before 1.4.11 and before 1.4.12 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- mybb-myrand-unauth-access(64516) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://dev.mybboard.net/projects/mybb/repository/revisions/4872 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20101011 Re: CVE request: mybb before 1.4.11 and before 1.4.12 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20101206 Re: CVE request: mybb before 1.4.11 and before 1.4.12 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2010-4626)Record last updated .