Home/CVE/The my_rand function in functions.php in MyBB (aka MyBulletinBoard) before 1.4.12 does not properly use the PHP mt_rand
CVE

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

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.

MEDIUM · CVSS 5.1 EPSS 0.01334
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
▤

Affected Products & Versions

2
mybb<= 1.4.11
mybball versions
▣

Scoring & Timeline

5.1
MEDIUM · CVSS v2 (legacy) · cve@mitre.org
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This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:H/Au:N/C:P/I:P/A:P
Published to NVD30 Dec 2010 · 09:00 PM
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://blog.mybb.com/2010/04/13/mybb-1-4-12-released-security-maintenance-update/
http://dev.mybboard.net/issues/843
http://dev.mybboard.net/projects/mybb/repository/revisions/4872
http://openwall.com/lists/oss-security/2010/10/08/7
http://openwall.com/lists/oss-security/2010/10/11/8
http://openwall.com/lists/oss-security/2010/12/06/2
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