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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-117563— MrDoc through 1.1.1 Broken Access Control via manage_doc_share

Quick assessment

Affected
zmister2016 MrDoc
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.

MrDoc 1.1.1 及以下版本在 类型的第 3 个分支中存在访问控制失效漏洞。该漏洞允许已认证用户修改其他用户的文档共享设置，原因是更新操作未进行所有权验证。攻击者可通过计算文档 ID 与用户名的 MD5 哈希值来生成可预测的共享令牌，从而重新启用已被禁用的共享设置或移除访问密码，导致私有文档被泄露。

CVSS 5.4 · Medium
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-117563

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
MrDoc through 1.1.1 Broken Access Control via manage_doc_share
Source: CVE Program / CVE List V5
Vulnerability Description
MrDoc through 1.1.1 contains a broken access control vulnerability in the manage_doc_share type 3 branch that allows authenticated users to modify other users' document share settings because updates lack an ownership check. Attackers can compute predictable share tokens from the MD5 of document ID and username to re-enable disabled shares or remove access codes, exposing private documents.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
zmister2016 MrDoc 0 ~ 1.1.1 -

II. Public POCs for CVE-2026-117563

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-117563

请登录查看更多情报信息。

Other References for CVE-2026-117563 (4)

IV. Related Vulnerabilities

Same product: MrDoc
Same vendor: zmister2016
Same weakness: CWE-639