CVE-2000-0900: Acme Labs Thttpd

High severity, CVSS 7.5. EPSS: 2% chance of exploitation in the next 30 days.

Directory traversal vulnerability in ssi CGI program in thttpd 2.19 and earlier allows remote attackers to read arbitrary files via a "%2e%2e" string, a variation of the .. (dot dot) attack.

Affected products

• Acme Labs Thttpd: version 2.16 only; version 2.17 only; version 2.18 only; version 2.19 only

Published 2000-12-19. Last modified 2026-09-23.