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CVE-2026-116206— YesWiki 4.2.0 before 4.7.0 Stored XSS via Comment Raw-HTML Syntax

Quick assessment

Affected

YesWiki yeswiki

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.

YesWiki 4.2.0 至 4.7.0（不含 4.7.0）版本存在存储型跨站脚本（XSS）漏洞。该漏洞允许已认证用户利用 Wakka 的原始 HTML 语法，在评论正文中注入恶意脚本。攻击者可通过接口提交评论，这些评论内容会未经转义地通过 Twig 的过滤器渲染，从而在管理员和普通访客的会话中执行 JavaScript 代码。

CVSS 6.4 · Medium Updated Oct 25, 2026

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

Vendor	Product	Version Range	Status
YesWiki	yeswiki	`4.2.0< 4.7.0`	affected
		`4.7.0`	unaffected

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Vulnerability Information

Have questions about the vulnerability? See if Shenlong's analysis helps!

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title

YesWiki 4.2.0 before 4.7.0 Stored XSS via Comment Raw-HTML Syntax

Source: CVE Program / CVE List V5

Vulnerability Description

YesWiki from 4.2.0 before 4.7.0 contains a stored cross-site scripting vulnerability that allows authenticated users to inject script into comment bodies using the wakka raw-HTML syntax. Attackers can post comments via the /api/comments endpoint that render unescaped through the Twig raw filter, executing JavaScript in administrators' and visitors' sessions.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:L/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
YesWiki	yeswiki	4.2.0 ~ 4.7.0	-

II. Public POCs for CVE-2026-116206

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-116206

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Vendor Advisories for CVE-2026-116206 (2)

https://www.cve.org/CVERecord?id=CVE-2026-116206

Same Patch Batch · YesWiki · 2026-10-25 · 8 CVEs total

CVE-2026-116207	9.1 CRITICAL	YesWiki 4.6.0 before 4.7.0 SQL Injection via Bazar Entries Search API
CVE-2026-116211	8.2 HIGH	YesWiki 4.5.0 before 4.7.0 SQL Injection via date_maj_fiche in Bazar entry create
CVE-2026-116208	8.1 HIGH	YesWiki 4.6.2 before 4.7.0 Missing Authorization in ActivityPub syncActorPosts
CVE-2026-116204	8.1 HIGH	YesWiki before 4.7.0 CSRF via despam Admin Action
CVE-2026-116203	6.1 MEDIUM	YesWiki before 4.7.0 Stored XSS via filtertags Action Parameters
CVE-2026-116202	5.4 MEDIUM	YesWiki before 4.7.0 Stored XSS via ImageField SVG Upload
CVE-2026-116205	5.3 MEDIUM	YesWiki before 4.7.0 Unauthenticated SSRF via [[\|URL]] Raw-Inclusion Syntax

IV. Related Vulnerabilities

Same product: yeswiki

Same vendor: YesWiki

Same weakness: CWE-79