CVE-2011-3125

WordPress Core < 3.1.3 - Security Hardening

2011-05-25 00:00

Strategic Overview

Status: Patched in 3.1.3
Affected Core: WordPress 3.1
Affected Version: <= 3.1.2
CVSS: 6.3Medium
Weakness type: CWE-20 · Improper Input Validation
CVE: CVE-2011-3125

At a glance

CVE-2011-3125 is a medium-severity Improper Input Validation vulnerability in the WordPress 3.1 WordPress release line, affecting <= 3.1.2. It carries a CVSS score of 6.3 (reachable over the network; low attack complexity). The issue is fixed in version 3.1.3; sites on affected versions should update now. Disclosed May 2011, reported by Alexander Concha.

Vulnerability Overview

Unspecified vulnerability in WordPress 3.1 before 3.1.3 and 3.2 before Beta 2 has unknown impact and attack vectors related to "Various security hardening."

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-20: Improper Input Validation

Reaching this weakness in WordPress 3.1 <= 3.1.2 takes a caller who can reach the endpoint. Improper input validation means the application accepts input without confirming it has the form, type or range the code downstream assumes.

The concrete impact depends on where the unvalidated value lands, which is why records in this class range from cosmetic bugs to full compromise. For WordPress 3.1 the fix is 3.1.3: builds <= 3.1.2 are affected, anything from 3.1.3 onward is not.

Remediation

Update to version 3.1.3, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to WordPress 3.1: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: updating to 3.1.3 is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2011-3125 https://www.wordfence.com/threat-intel/vulnerabilities/id/501e3c8a-350e-4431-b6a2-012e837320bc https://nvd.nist.gov/vuln/detail/CVE-2011-3125

Related records

Same weakness class

Other vulnerabilities in WordPress 3.1

CVSS Vector

6.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityLow
AvailabilityLow

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