WordPress Append Content plugin <= 2.1.1 - CSRF to Settings Change vulnerability

6.5 CVSS

Vulnerability Description

Missing Authorization vulnerability in Andy Stratton Append Content append-content allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Append Content: from n/a through <= 2.1.1.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Mika | Patchstack Bug Bounty Program

References

https://patchstack.com/database/Wordpress/Plugin/append-content/vulnerability/wordpress-append-content-plugin-2-1-1-csrf-to-settings-change-vulnerability?_s_id=cve

Affected Vendor

Andy Stratton

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Affected Software

Append Content

Vulnerable Versions:

Timeline

Official Publish: April 1st, 2025

Last Modified: April 28th, 2026

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Weaknesses (CWE)

CWE-862

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

Initial Access

T1068 Exploitation for Privilege Escalation

Privilege Escalation

T1078 Valid Accounts

Persistence

T1531 Account Access Removal

Impact