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The cookie authentication method in WordPress 2.5 relies...

High severity Unreviewed Published May 1, 2022 to the GitHub Advisory Database • Updated Apr 9, 2025

Package

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Affected versions

Unknown

Patched versions

Unknown

Description

The cookie authentication method in WordPress 2.5 relies on a hash of a concatenated string containing USERNAME and EXPIRY_TIME, which allows remote attackers to forge cookies by registering a username that results in the same concatenated string, as demonstrated by registering usernames beginning with "admin" to obtain administrator privileges, aka a "cryptographic splicing" issue. NOTE: this vulnerability exists because of an incomplete fix for CVE-2007-6013.

References

Published by the National Vulnerability Database Apr 28, 2008
Published to the GitHub Advisory Database May 1, 2022
Last updated Apr 9, 2025

Severity

High

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(92nd percentile)

Weaknesses

Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Learn more on MITRE.

CVE ID

CVE-2008-1930

GHSA ID

GHSA-m86r-5c2c-w6rq

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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