CVE-2014-9039

WordPress Core < 4.0.1 Cross-Site Request Forgery to Password Reset

2014-11-20 00:00

Strategic Overview

Status: Patched in 3.7.5
Affected Core: WordPress 4.0
Affected Version: 3.7 – 4.0 · 5 branches
CVSS: 8.8High
Weakness type: CWE-352 · Cross-Site Request Forgery (CSRF)
CVE: CVE-2014-9039

At a glance

CVE-2014-9039 is a high-severity Cross-Site Request Forgery (CSRF) vulnerability in the WordPress 4.0 WordPress release line, affecting 3.7 – 4.0 · 5 branches. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 3.7.5; sites on affected versions should update now. Disclosed November 2014.

Vulnerability Overview

wp-login.php in WordPress before 3.7.5, 3.8.x before 3.8.5, 3.9.x before 3.9.3, and 4.x before 4.0.1 might allow remote attackers to reset passwords by leveraging access to an e-mail account that received a password-reset message.

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 privileges on the target site. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-352: Cross-Site Request Forgery (CSRF)

Reaching this weakness in WordPress 4.0 3.7 – 4.0 · 5 branches takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.

An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For WordPress 4.0 the fix is 3.7.5: builds 3.7 – 4.0 · 5 branches are affected, anything from 3.7.5 onward is not.

Remediation

Update to one of the following versions, or a newer patched version: 3.7.5, 3.8.5, 3.9.3, 4.0.1

How does WordSec protect against this?

The attempt arrives as an ordinary request to WordPress 4.0: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: updating to 3.7.5 is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2014-9039 https://www.wordfence.com/threat-intel/vulnerabilities/id/7aa73c13-3f58-423a-ba5f-bebaae2b8371 https://nvd.nist.gov/vuln/detail/CVE-2014-9039

Related records

Same weakness class

Other vulnerabilities in WordPress 4.0

CVSS Vector

8.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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