WordPress Core < 3.1.1 - Denial of Service

2011-04-05 00:00

Anonymous

Strategic Overview

Status

Patched in 3.1.1

Affected CoreWordPress 3.1

Affected Version< 3.1.1

CVSS7.5High

CVECVE-2011-4957

View all WordPress 3.1 vulnerabilities

Vulnerability Overview

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.

Technical Analysis

REMEDIATION: Update to version 3.1.1, or a newer patched version --- IDENTIFIER: CWE-400 (Uncontrolled Resource Consumption) The product does not properly control the allocation and maintenance of a limited resource.

External References

https://www.cve.org/CVERecord?id=CVE-2011-4957 https://www.wordfence.com/threat-intel/vulnerabilities/id/cefb979e-2b5b-4820-a350-ee106131f0f9

CVSS Vector

7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh

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