CWE
20
Advisory Published
Updated

CVE-2011-4957: Input Validation

First published: Wed Jun 27 2012(Updated: )

The make_clickable function in wp-includes/formatting.php in WordPress before 3.1.1 does not properly check URLs before passing them to the PCRE library, which allows remote attackers to cause a denial of service (crash) via a comment with a crafted URL that triggers many recursive calls.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
WordPress WordPress<=3.1
WordPress WordPress=0.71
WordPress WordPress=1.0
WordPress WordPress=1.0.1
WordPress WordPress=1.0.2
WordPress WordPress=1.1.1
WordPress WordPress=1.2
WordPress WordPress=1.2.1
WordPress WordPress=1.2.2
WordPress WordPress=1.2.3
WordPress WordPress=1.2.4
WordPress WordPress=1.2.5
WordPress WordPress=1.2.5-a
WordPress WordPress=1.3
WordPress WordPress=1.3.2
WordPress WordPress=1.3.3
WordPress WordPress=1.5
WordPress WordPress=1.5.1
WordPress WordPress=1.5.1.1
WordPress WordPress=1.5.1.2
WordPress WordPress=1.5.1.3
WordPress WordPress=1.5.2
WordPress WordPress=2.0
WordPress WordPress=2.0.1
WordPress WordPress=2.0.2
WordPress WordPress=2.0.4
WordPress WordPress=2.0.5
WordPress WordPress=2.0.6
WordPress WordPress=2.0.7
WordPress WordPress=2.0.8
WordPress WordPress=2.0.9
WordPress WordPress=2.0.10
WordPress WordPress=2.0.11
WordPress WordPress=2.1
WordPress WordPress=2.1.1
WordPress WordPress=2.1.2
WordPress WordPress=2.1.3
WordPress WordPress=2.2
WordPress WordPress=2.2.1
WordPress WordPress=2.2.2
WordPress WordPress=2.2.3
WordPress WordPress=2.3
WordPress WordPress=2.3.1
WordPress WordPress=2.3.2
WordPress WordPress=2.3.3
WordPress WordPress=2.5
WordPress WordPress=2.5.1
WordPress WordPress=2.6
WordPress WordPress=2.6.1
WordPress WordPress=2.6.2
WordPress WordPress=2.6.3
WordPress WordPress=2.6.5
WordPress WordPress=2.7
WordPress WordPress=2.7.1
WordPress WordPress=2.8
WordPress WordPress=2.8.1
WordPress WordPress=2.8.2
WordPress WordPress=2.8.3
WordPress WordPress=2.8.4
WordPress WordPress=2.8.4-a
WordPress WordPress=2.8.5
WordPress WordPress=2.8.5.1
WordPress WordPress=2.8.5.2
WordPress WordPress=2.8.6
WordPress WordPress=2.9
WordPress WordPress=2.9.1
WordPress WordPress=2.9.1.1
WordPress WordPress=2.9.2
WordPress WordPress=3.0
WordPress WordPress=3.0.1
WordPress WordPress=3.0.2
WordPress WordPress=3.0.3
WordPress WordPress=3.0.4
WordPress WordPress=3.0.5
WordPress WordPress=3.0.6

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