VulnerabilityModified
CVE-2011-4957
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…
MEDIUM 5.0EPSS 3.16%
Does this matter?
Lower severity and a low EPSS score (3.16%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 3.16% probability · 87th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- wordpress/wordpress
- Source
- secalert@redhat.com
References
- http://core.trac.wordpress.org/ticket/16892
- http://secunia.com/advisories/44038Vendor Advisory
- http://secunia.com/advisories/49138Vendor Advisory
- http://wordpress.org/news/2011/04/wordpress-3-1-1/
- http://www.debian.org/security/2012/dsa-2470
- http://www.openwall.com/lists/oss-security/2012/04/19/17
- http://www.openwall.com/lists/oss-security/2012/04/19/6
- http://core.trac.wordpress.org/ticket/16892
- http://secunia.com/advisories/44038Vendor Advisory
- http://secunia.com/advisories/49138Vendor Advisory
- http://wordpress.org/news/2011/04/wordpress-3-1-1/
- http://www.debian.org/security/2012/dsa-2470
- http://www.openwall.com/lists/oss-security/2012/04/19/17
- http://www.openwall.com/lists/oss-security/2012/04/19/6
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.