Shibboleth <= 2.5.3 - Unauthenticated Administrator Account Creation

2026-06-24 00:00

Khaled Alenazi (Nxploited)

Strategic Overview

Status

Patched in 2.5.4

Affected PluginShibboleth

Affected Version<= 2.5.3

CVSS9.8Critical

CVECVE-2026-12281

View all Shibboleth vulnerabilities

Vulnerability Overview

The Shibboleth plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in all versions up to, and including, 2.5.3. This makes it possible for unauthenticated attackers to create new administrative user accounts.

Technical Analysis

REMEDIATION: Update to version 2.5.4, or a newer patched version --- IDENTIFIER: CWE-862 (Missing Authorization) The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

External References

https://www.cve.org/CVERecord?id=CVE-2026-12281 https://www.wordfence.com/threat-intel/vulnerabilities/id/cb55be41-c3aa-4f1e-9330-a31181a3a264

CVSS Vector

9.8

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

Base

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

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