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CVE-2026-57643— WordPress WP Post Author plugin <= 3.9.1 - SQL Injection vulnerability

Quick assessment

Affected
AF themes WP Post Author
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.

afthemes WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars是afthemes公司的WordPress插件,用于显示作者信息框、支持多位作者、访客作者和自定义头像。 afthemes WP Post Author 3.9.1及之前版本存在SQL注入漏洞，该漏洞源于容易受到SQL注入攻击。

CVSS 8.5 · High EPSS 0.36% · P27

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
AF themes WP Post Author n/a≤ 3.9.1 affected
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I. Basic Information for CVE-2026-57643

Vulnerability Information
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Vulnerability Title
WordPress WP Post Author plugin <= 3.9.1 - SQL Injection vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Contributor SQL Injection in WP Post Author <= 3.9.1 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
afthemes WP Post Author SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
afthemes WP Post Author – Author Box, Multiple Authors, Guest Authors & Custom Avatars是afthemes公司的WordPress插件,用于显示作者信息框、支持多位作者、访客作者和自定义头像。 afthemes WP Post Author 3.9.1及之前版本存在SQL注入漏洞，该漏洞源于容易受到SQL注入攻击。
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
AF themes WP Post Author n/a ~ 3.9.1 -

II. Public POCs for CVE-2026-57643

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III. Intelligence Information for CVE-2026-57643

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News Coverage for CVE-2026-57643 (1)

IV. Related Vulnerabilities

Same product: WP Post Author
Same vendor: AF themes
Same weakness: CWE-89

V. Comments for CVE-2026-57643

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