CVE-2026-116202— YesWiki before 4.7.0 Stored XSS via ImageField SVG Upload

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 之前版本存在存储型跨站脚本（XSS）漏洞。低权限的已认证用户可通过 Bazar 模块的 ImageField 类上传未经净化的 SVG 文件。攻击者可利用条目（entries）API 中的图片字段提交恶意 SVG 文件，该文件将以类型返回，导致查看该条目或文件的用户浏览器执行恶意脚本。

CVSS 5.4 · Medium Updated Oct 25, 2026

Possible ATT&CK Techniques 2 AI

T1203 · Exploitation for Client Execution T1190 · Exploit Public-Facing Application

Get alerts for future matching vulnerabilities Log in to subscribe

Vulnerability Information

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

View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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 before 4.7.0 Stored XSS via ImageField SVG Upload

Source: CVE Program / CVE List V5

Vulnerability Description

YesWiki before 4.7.0 contains a stored cross-site scripting vulnerability that allows low-privilege authenticated users to upload unsanitized SVG files through the bazar ImageField class. Attackers can submit a malicious SVG via the image field of the entries API, which is served as image/svg+xml and executes script for users viewing the entry or file.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/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	0 ~ 4.7.0	-

II. Public POCs for CVE-2026-116202

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-116202

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-116202 (2)

🔗 ImageField SVG upload stored XSS (incomplete fix for GHSA-67v5-7pfv-pp9m) · Advisory · YesWiki/yeswiki · GitHub Read full article vendor-advisory
🔗 YesWiki before 4.7.0 Stored XSS via ImageField SVG Upload | Advisories | VulnCheck third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-116202

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-2026-116206	6.4 MEDIUM	YesWiki 4.2.0 before 4.7.0 Stored XSS via Comment Raw-HTML Syntax
CVE-2026-116203	6.1 MEDIUM	YesWiki before 4.7.0 Stored XSS via filtertags Action Parameters
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