CVE-2011-4451

Name: CVE-2011-4451
Creator: NVD / NIST
Published: 2012-09-05T20:55:01.24+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 13.48%

Last modified Jun 16, 2026

CVE-2011-4451 is a vulnerability of currently unknown severity. libs/Wakka.class.php in WikkaWiki 1.3.1 and 1.3.2, when the spam_logging option is enabled, allows remote attackers to write arbitrary PHP code to the spamlog_path file via the User-Agent HTTP header in an addcomment request. NOTE: the vendor disputes this issue because the rendering of the spamlog_path file never uses the PHP interpreter. EPSS estimates a 13.48% chance of exploitation in the next 30 days.

Description

libs/Wakka.class.php in WikkaWiki 1.3.1 and 1.3.2, when the spam_logging option is enabled, allows remote attackers to write arbitrary PHP code to the spamlog_path file via the User-Agent HTTP header in an addcomment request. NOTE: the vendor disputes this issue because the rendering of the spamlog_path file never uses the PHP interpreter

Metrics

EPSS Probability

13.48%

96.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Wikkawiki	Wikkawiki	1.3.1
Wikkawiki	Wikkawiki	1.3.2

References

http://wush.net/trac/wikka/ticket/1098Exploit
http://wush.net/trac/wikka/ticket/1098Exploit

Timeline

Published: Sep 5, 2012
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-4451?

How severe is CVE-2011-4451?

Severity scoring for CVE-2011-4451 is pending analysis. The EPSS model estimates a 13.48% probability of exploitation in the next 30 days.

How do I fix CVE-2011-4451?

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-2011-4451?

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

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Source: NVD / NIST