CVE-2010-4626

5.1 MEDIUM 2% exploit odds No fix listed

What it is

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.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 2.2% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2010-12-30 21:00 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 23:25 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 2.2% in the next 30 days (EPSS).
Severity: 5.1 MEDIUM (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2010-12-30 21:00 UTC
Last modified: 2026-06-16 23:25 UTC
Exploit probability: 2.2% · EPSS, next 30 days
Weakness: CWE-310
Record status: Modified

Affected

Mybb ≤ 1.4.11
Mybb 1.00
Mybb 1.01
Mybb 1.1.0
Mybb 1.1.1
Mybb 1.1.2
Mybb 1.1.3
Mybb 1.1.4

Attack profile CVSS 2.0 · 5.1

Attack vector: Network
Complexity: High
Authentication: None
Confidentiality: Partial
Integrity: Partial
Availability: Partial

Raw vector

AV:N/AC:H/Au:N/C:P/I:P/A:P

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2010-4626.md and follow it. Check whether this project is affected by CVE-2010-4626. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record