CVE-1999-1053
Apache <1.3.9 - RCE
Title source: llmDescription
guestbook.pl cleanses user-inserted SSI commands by removing text between "<!--" and "-->" separators, which allows remote attackers to execute arbitrary commands when guestbook.pl is run on Apache 1.3.9 and possibly other versions, since Apache allows other closing sequences besides "-->".
Exploits (4)
exploitdb
WORKING POC
VERIFIED
by Metasploit · rubywebappscgi
https://www.exploit-db.com/exploits/16914
metasploit
WORKING POC
EXCELLENT
by aushack · rubypoc
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/unix/webapp/guestbook_ssi_exec.rb
Scores
EPSS
0.9068
EPSS Percentile
99.6%
Classification
Status
draft
Affected Products (2)
apache/http_server
matt_wright/matt_wright_guestbook
Timeline
Published
Sep 13, 1999
Tracked Since
Feb 18, 2026