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CVE-2005-0269

The file extension check in GNUBoard 3.40 and earlier only verifies extensions that contain all...

9.8 Critical

CVE-2005-0269 is a critical vulnerability (CVSS 9.8) in Sir Gnuboard, published February 10, 2005. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.64%, the 85th percentile. No source names a fixed version.

Severity
9.8 CriticalCVSS 3.1, NVD
Exploit chance
2.64%EPSS, 85th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

Description

The file extension check in GNUBoard 3.40 and earlier only verifies extensions that contain all lowercase letters, which allows remote attackers to upload arbitrary files via file extensions that include uppercase letters.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.64%Up 1.4 points since Feb 4, 2022
90%50%10%1%

Affected products

What each source reports

NVD Score used9.8

The file extension check in GNUBoard 3.40 and earlier only verifies extensions that contain all lowercase letters, which allows remote attackers to upload arbitrary files via file extensions that include uppercase letters.

Record
CVE-2005-0269
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-178
Updated
2026-11-02
CVE ListNo score

The file extension check in GNUBoard 3.40 and earlier only verifies extensions that contain all lowercase letters, which allows remote attackers to upload arbitrary files via file extensions that include uppercase letters.

Record
CVE-2005-0269
Updated
2026-11-02
EUVDEUVD-2005-0270No score

The file extension check in GNUBoard 3.40 and earlier only verifies extensions that contain all lowercase letters, which allows remote attackers to upload arbitrary files via file extensions that include uppercase letters.

Record
EUVD-2005-0270
Updated
2026-11-03
GitHub AdvisoriesGHSA-m65m-xrgm-j7369.8

The file extension check in GNUBoard 3.40 and earlier only verifies extensions that contain all...

The file extension check in GNUBoard 3.40 and earlier only verifies extensions that contain all lowercase letters, which allows remote attackers to upload arbitrary files via file extensions that include uppercase letters.

Record
GHSA-m65m-xrgm-j736
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-178
Updated
2026-11-02

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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