CVE-1999-1053

Name: CVE-1999-1053
Creator: NVD / NIST
Published: 1999-09-13T04:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 85.20%

Last modified Jun 16, 2026

CVE-1999-1053 is a vulnerability of currently unknown severity. guestbook.pl cleanses user-inserted SSI commands by removing text between "" 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 "-->".. EPSS estimates a 85.20% chance of exploitation in the next 30 days.

Description

guestbook.pl cleanses user-inserted SSI commands by removing text between "" 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 "-->".

Metrics

EPSS Probability

85.20%

99.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Apache	Http Server	1.3.9
Matt Wright	Matt Wright Guestbook	2.3

References

http://www.securityfocus.com/archive/1/33674Vendor Advisory
http://www.securityfocus.com/archive/82/27296Exploit, Vendor Advisory
http://www.securityfocus.com/archive/82/27560Vendor Advisory
http://www.securityfocus.com/bid/776Exploit, Patch, Vendor Advisory
http://www.securityfocus.com/archive/1/33674Vendor Advisory
http://www.securityfocus.com/archive/82/27296Exploit, Vendor Advisory
http://www.securityfocus.com/archive/82/27560Vendor Advisory
http://www.securityfocus.com/bid/776Exploit, Patch, Vendor Advisory

Timeline

Published: Sep 13, 1999
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-1999-1053?

How severe is CVE-1999-1053?

Severity scoring for CVE-1999-1053 is pending analysis. The EPSS model estimates a 85.20% probability of exploitation in the next 30 days.

How do I fix CVE-1999-1053?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-1999-1053?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST