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CVE-1999-1053

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

7.5 HighPublic exploit

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 "-->".

Exploit likelihood

85.2%Up 13.4 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.5

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 "-->".

Record
CVE-1999-1053
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated
2026-11-02
CVE List No score

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 "-->".

Record
CVE-1999-1053
Updated
2026-11-02
EUVDEUVD-1999-1034 No score

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 "-->".

Record
EUVD-1999-1034
Updated
2026-11-03
GitHub AdvisoriesGHSA-7fhv-p5jq-2v6f No score

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

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 "-->".

Record
GHSA-7fhv-p5jq-2v6f
Updated
2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, Exploit-DB, GitHub Advisories, Metasploit, NVD, PoC in GitHub

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

In short

CVE-1999-1053 is a high vulnerability (CVSS 7.5) in Matt Wright Guestbook, published September 13, 1999. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 85.2%, the 99th percentile. No source names a fixed version.

References

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