CVE-2026-116822— YesWiki before 4.7.0 Template Traversal via BazarListeAction template Parameter

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 4.7.0 之前的版本在中存在路径遍历漏洞。该漏洞允许未经身份验证的攻击者通过 GET 参数，在 Twig 命名空间中任意选择模板。攻击者可将精心构造的模板值附加到包含操作的页面上，从而强制应用非预期的布局，导致访问该构造链接的用户看到被篡改的页面内容（即页面被篡改）。

CVSS 5.3 · Medium Updated Oct 27, 2026

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

YesWiki before 4.7.0 Template Traversal via BazarListeAction template Parameter

Source: CVE Program / CVE List V5

Vulnerability Description

YesWiki before 4.7.0 contains a path traversal vulnerability in BazarListeAction that allows unauthenticated attackers to select arbitrary templates within the @bazar Twig namespace via the template GET parameter. Attackers can append crafted template values to pages containing the bazarliste action to force unintended layouts, causing page defacement for visitors following the crafted link.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

文件名或路径的外部可控制

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
YesWiki	yeswiki	0 ~ 4.7.0	-

II. Public POCs for CVE-2026-116822

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-116822

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Other References for CVE-2026-116822 (2)

https://github.com/YesWiki/yeswiki/security/advisories/GHSA-qfv2-x8g4-qg27 vendor-advisory
https://www.vulncheck.com/advisories/yeswiki-before-4.7.0-template-traversal-via-bazarlisteaction-template-parameter third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-116822

Same Patch Batch · YesWiki · 2026-10-26 · 9 CVEs total

CVE-2026-116827	6.8 MEDIUM	YesWiki before 4.7.0 SSRF via copyUrlToLocalFile in Bazar CSV Import
CVE-2026-116826	6.8 MEDIUM	YesWiki before 4.7.0 Authenticated SSRF via Page Duplication API downloadFile
CVE-2026-116821	6.5 MEDIUM	YesWiki before 4.7.0 Read-ACL Bypass via SQL LIKE Wildcards in Usernames
CVE-2026-116825	6.5 MEDIUM	YesWiki from 4.6.2 before 4.7.0 HTTP Signature Replay via ActivityPub Inbox
CVE-2026-116823	6.1 MEDIUM	YesWiki before 4.7.0 Reflected XSS via BazarField $_REQUEST Fallback
CVE-2026-116824	6.1 MEDIUM	YesWiki before 4.7.0 Stored XSS via Referer Header in referrers_sites Handler
CVE-2026-116820	5.3 MEDIUM	YesWiki from 4.6.0 before 4.7.0 SQL Query Disclosure via showreq Parameter
CVE-2026-116828	4.9 MEDIUM	YesWiki before 4.7.0 SQL Injection via despam.php INTERVAL operand

IV. Related Vulnerabilities

Same product: yeswiki

Same vendor: YesWiki

Same weakness: CWE-73