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CVE-2026-57676— WordPress Simple User Avatar plugin <= 4.9 - Insecure Direct Object References (IDOR) vulnerability

Quick assessment

Affected
Matteo Manna Simple User Avatar
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress Simple User Avatar是WordPress基金会的一款用户头像管理插件。 WordPress Simple User Avatar 4.9及之前版本存在授权问题漏洞，该漏洞源于通过用户控制密钥的授权绕过问题，允许利用配置不当的访问控制安全级别。

CVSS 4.3 · Medium EPSS 0.29% · P20

Affected Version Matrix 1

VendorProduct Version RangeStatus
Matteo Manna Simple User Avatar n/a≤ 4.9 affected
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I. Basic Information for CVE-2026-57676

Vulnerability Information
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Vulnerability Title
WordPress Simple User Avatar plugin <= 4.9 - Insecure Direct Object References (IDOR) vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Authorization Bypass Through User-Controlled Key vulnerability in Matteo Manna Simple User Avatar allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Simple User Avatar: from n/a through 4.9.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Simple User Avatar 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Simple User Avatar是WordPress基金会的一款用户头像管理插件。 WordPress Simple User Avatar 4.9及之前版本存在授权问题漏洞，该漏洞源于通过用户控制密钥的授权绕过问题，允许利用配置不当的访问控制安全级别。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Matteo Manna Simple User Avatar n/a ~ 4.9 -

II. Public POCs for CVE-2026-57676

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III. Intelligence Information for CVE-2026-57676

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Vendor Advisories for CVE-2026-57676 (1)

IV. Related Vulnerabilities

Same weakness: CWE-639

V. Comments for CVE-2026-57676

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