Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-120500— An Otter Wiki before 2.26.2 Stored XSS via Math Code Block

Quick assessment

Affected
redimp otterwiki
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.

2.26.2 之前的 Otter Wiki 版本在 中存在存储型跨站脚本（XSS）漏洞。该漏洞允许能够编辑页面的攻击者（在默认配置下包括匿名用户）注入任意脚本。攻击者可在数学代码块（fenced code block）中插入 HTML 内容，该内容在渲染时未经转义，导致所有查看该页面的用户都会执行注入的脚本。

CVSS 6.1 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-120500

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
An Otter Wiki before 2.26.2 Stored XSS via Math Code Block
Source: CVE Program / CVE List V5
Vulnerability Description
An Otter Wiki before 2.26.2 contains a stored cross-site scripting vulnerability in OtterwikiMdRenderer.block_code that allows attackers who can edit pages, including anonymous users under the default configuration, to inject arbitrary script. Attackers can place HTML inside a math fenced code block, which is rendered unescaped and executes for every viewer of the page.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/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
redimp otterwiki 2.0.0 ~ 2.26.2 -

II. Public POCs for CVE-2026-120500

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-120500

请登录查看更多情报信息。

Other References for CVE-2026-120500 (3)

IV. Related Vulnerabilities

Same product: otterwiki
Same vendor: redimp
Same weakness: CWE-79