CVE-2025-39434 - CVE House

Status published Medium CVE-2025-39434

WordPress Avatar plugin <= 0.1.4 - Insecure Direct Object References (IDOR) vulnerability

4.3 CVSS

Vulnerability Description

Authorization Bypass Through User-Controlled Key vulnerability in Scott Taylor Avatar avatar allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Avatar: from n/a through <= 0.1.4.

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:

Nguyen Xuan Chien | Patchstack Bug Bounty Program

References

https://patchstack.com/database/Wordpress/Plugin/avatar/vulnerability/wordpress-avatar-plugin-0-1-4-insecure-direct-object-references-idor-vulnerability?_s_id=cve

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Affected Vendor

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Affected Software

Avatar

Vulnerable Versions:

Timeline

Official Publish: April 17th, 2025

Last Modified: April 28th, 2026

Added to House: July 22nd, 2026

CVSS Vectors

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

Weaknesses (CWE)

CWE-639

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

Initial Access

T1078 Valid Accounts

Persistence

T1213 Data from Information Repositories

Collection

T1021 Remote Services

Lateral Movement

T1098 Account Manipulation

Privilege Escalation