Is CVE-2008-4929 being actively exploited?

CVE-2008-4929 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2008-4929?

CVE-2008-4929 has a CVSS 3.1 base score of 7.5 (HIGH).

CVE-2008-4929

HIGH · CVSS 7.5EPSS 2.2%EU EUVD

MyBB (aka MyBulletinBoard) 1.4.2 uses insufficient randomness to compose filenames of uploaded files used as attachments, which makes it easier for remote attackers to read these files by guessing filenames.

Key facts

CVSS score: 7.5 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-330
EPSS score: 2.2% (83th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2008-4908)
Published: November 4, 2008
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2008-4908 in the EU Vulnerability Database. Last updated in EUVD on January 17, 2025.

View on the EU Vulnerability Database

Affected products

mybb / mybb

References

http://archives.neohapsis.com/archives/bugtraq/2008-10/0203.html(Broken Link, Exploit)
http://archives.neohapsis.com/archives/fulldisclosure/2008-10/0472.html(Broken Link, Exploit)
http://www.openwall.com/lists/oss-security/2008/11/01/2(Exploit, Mailing List)
http://www.securityfocus.com/bid/31936(Broken Link, Third Party Advisory, VDB Entry)
http://www.vupen.com/english/advisories/2008/2967(Broken Link)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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