CVE-1999-1053

Summary

CVE-1999-1053 is a vulnerability affecting the guestbook.pl script, which is used to manage guestbooks on Apache web servers. The issue arises because the script cleanses user-inputted Server Side Includes (SSI) commands by only removing text between the "-->" separators. Malicious actors can exploit this flaw to execute arbitrary commands, as Apache also accepts other closing sequences besides "-->". This vulnerability was identified in Apache 1.3.9 and potentially other versions.

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