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CVE-2010-4626

17
FAUCET Score

CVE-2010-4626 describes a vulnerability in MyBB (MyBulletinBoard) versions prior to 1.4.12, where an improper implementation of the PHP mt_rand function in the my_rand function within functions.php allows remote attackers to more easily guess password reset tokens. This flaw has a CVSS score of 5.1, indicating a medium severity with network access, high attack complexity, and partial impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.4.11CPE matchmatch criteria
cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*
1.00CPE matchmatch criteria
cpe:2.3:a:mybb:mybb:1.00:*:*:*:*:*:*:*
1.01CPE matchmatch criteria
cpe:2.3:a:mybb:mybb:1.01:*:*:*:*:*:*:*
1.1.0CPE matchmatch criteria
cpe:2.3:a:mybb:mybb:1.1.0:*:*:*:*:*:*:*
1.1.1CPE matchmatch criteria
cpe:2.3:a:mybb:mybb:1.1.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.1MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.15%
Probability of exploitation in next 30 days
EPSS Percentile
80.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0215 is in the 67th percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blog.mybb.com / 2010/04/13/mybb-1-4-12-released-security-maintenance-update
dev.mybboard.net / issues/843
dev.mybboard.net / projects/mybb/repository/revisions/4872
openwall.com / lists/oss-security/2010/10/08/7
openwall.com / lists/oss-security/2010/10/11/8
openwall.com / lists/oss-security/2010/12/06/2
exchange.xforce.ibmcloud.com / vulnerabilities/64516