UpHeron
All vulnerabilities

Servers and applications

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 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.

Severity
Medium 5.1
Published
30 Dec 2010
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
2.2% in the next 30 daysHigher than 82% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-310
Attack
Over the network · Only under certain conditions · No login needed
Attacker can
Read some data · Change some data · Slow it down
CVSS vector
AV:N/AC:H/Au:N/C:P/I:P/A:P
Sources
NVD

Affected software

SoftwareAffected versions
MyBBServers and applications · cpe:a:mybb:mybb
  • Version 1.4.10
  • Version 1.4.9
  • Version 1.4.8
  • Version 1.4.6
All 36 release lines
  • Every version up to 1.4.11
  • Version 1.00
  • Version 1.01
  • Version 1.1.0
  • Version 1.1.1
  • Version 1.1.2
  • Version 1.1.3
  • Version 1.1.4
  • Version 1.1.5
  • Version 1.1.6
  • Version 1.1.7
  • Version 1.1.8
  • Version 1.02
  • Version 1.2
  • Version 1.2.1
  • Version 1.2.2
  • Version 1.2.3
  • Version 1.2.4
  • Version 1.2.5
  • Version 1.2.6
  • Version 1.2.7
  • Version 1.2.8
  • Version 1.2.9
  • Version 1.2.10
  • Version 1.2.11
  • Version 1.2.12
  • Version 1.2.13
  • Version 1.03
  • Version 1.04
  • Version 1.4.0
  • Version 1.4.2
  • Version 1.4.3
  • Version 1.4.6
  • Version 1.4.8
  • Version 1.4.9
  • Version 1.4.10

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2010-4626
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2010-4626