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CVE-2026-101920— Molongui Authorship <= 5.2.12 - Unauthenticated Stored DOM-Based Cross-Site Scripting via Comment href Attribute

Quick assessment

Affected
molongui Molongui Authorship – Author Boxes, Guest Authors & Co-Authors for WordPress
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 插件 Molongui Authorship – Author Boxes, Guest Authors & Co-Authors 存在存储型 DOM 跨站脚本（Stored DOM-Based Cross-Site Scripting）漏洞，该漏洞影响所有 5.2.12 及更早版本。漏洞原因是插件对输入数据的清理和输出转义处理不足。通过评论中的 href 属性（位于评论内容中）参数，未认证的攻击者可以在网页中注入任意 Web 脚本，当用户访问被注入的页面时，这些脚本将会被执行。 该漏洞在免费版

CVSS 7.2 · High EPSS 0.30% · P21

Affected Version Matrix 1

VendorProduct Version RangeStatus
molongui Molongui Authorship – Author Boxes, Guest Authors & Co-Authors for WordPress ≤ 5.2.12 affected
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I. Basic Information for CVE-2026-101920

Vulnerability Information
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Vulnerability Title
Molongui Authorship <= 5.2.12 - Unauthenticated Stored DOM-Based Cross-Site Scripting via Comment href Attribute
Source: CVE Program / CVE List V5
Vulnerability Description
The Molongui Authorship – Author Boxes, Guest Authors & Co-Authors for WordPress plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'comment (href attribute inside comment content)' parameter in all versions up to, and including, 5.2.12 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is exploitable in the free build because the plugin's author-filter rewriter never appends the ?m_bm=true marker to its own anchors (Plugin::has_pro() returns false), meaning every href the byline script selects and rewrites is fully attacker-controlled.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
molongui Molongui Authorship – Author Boxes, Guest Authors & Co-Authors for WordPress 0 ~ 5.2.12 -

II. Public POCs for CVE-2026-101920

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III. Intelligence Information for CVE-2026-101920

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Patches & Fixes for CVE-2026-101920 (2)

News Coverage for CVE-2026-101920 (1)

Other References for CVE-2026-101920 (1)

IV. Related Vulnerabilities

Same product: Molongui Authorship – Author Boxes, Guest Authors & Co-Authors for WordPress
Same vendor: molongui
Same weakness: CWE-79

V. Comments for CVE-2026-101920

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