Improper input validation in Wordpress
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 that triggers many recursive calls.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.032 (86.6th percentile) — read the EPSS interpretation.
Affected products
- Wordpress — versions 0.71, 1.0, 1.0.1
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (mailing-list, x_refsource_MLIST)
- secalert@redhat.com (x_refsource_SECUNIA, Vendor Advisory, third-party-advisory)
- secalert@redhat.com (x_refsource_CONFIRM)
- secalert@redhat.com (x_refsource_CONFIRM)
- secalert@redhat.com (x_refsource_SECUNIA, Vendor Advisory, third-party-advisory)
- secalert@redhat.com (mailing-list, x_refsource_MLIST)
- secalert@redhat.com (vendor-advisory, x_refsource_DEBIAN)
Frequently asked questions
- What is CVE-2011-4957?
- CVE-2011-4957 is a vulnerability in Wordpress, classified under Improper Input Validation. Published 2012-06-27.
- Is CVE-2011-4957 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.