CVE-2005-0269
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.64%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.64% probability · 85th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-178
- Affected
- sir/gnuboard
- Source
- cve@mitre.org
EPSS 2.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://marc.info/?l=bugtraq&m=110477648219738&w=2Exploit, Mailing List
- http://secunia.com/advisories/13711Broken Link
- http://www.securityfocus.com/bid/12149Broken Link, Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/18729Third Party Advisory, VDB Entry
- http://marc.info/?l=bugtraq&m=110477648219738&w=2Exploit, Mailing List
- http://secunia.com/advisories/13711Broken Link
- http://www.securityfocus.com/bid/12149Broken Link, Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/18729Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.