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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-48073— Docmost: Page export can include restricted same-space attachments through forged attachmentId

Quick assessment

Affected
docmost docmost
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.

Docmost 是一款开源的协同维基和文档软件。在版本 0.70.0 至 0.80.1 中，拥有较低权限的已认证用户若能编辑一个可导出的页面，便可嵌入一个同空间内受限制页面的伪造 attachmentId（附件 ID）。当攻击者控制该页面并设置 includeAttachments=true 参数进行导出时，导出流程会从存储中读取该受限制的附件，并将其包含在返回的 ZIP 归档文件中，尽管直接下载该文件会被拒绝访问。此问题已在版本 0.80.1 中得到修复。

CVSS 4.3 · Medium EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
docmost docmost >= 0.70.0, < 0.80.1 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-48073

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Docmost: Page export can include restricted same-space attachments through forged attachmentId
Source: CVE Program / CVE List V5
Vulnerability Description
Docmost is open-source collaborative wiki and documentation software. From 0.70.0 until 0.80.1, a low-privileged authenticated user who can edit an exportable page can embed a forged attachmentId that belongs to a restricted page in the same space. Exporting the attacker-controlled page with includeAttachments=true causes the page export flow to read the restricted attachment from storage and include it in the returned ZIP archive even though direct file download denies access. This issue is fixed in version 0.80.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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
docmost docmost >= 0.70.0, < 0.80.1 -

II. Public POCs for CVE-2026-48073

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-48073

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-48073 (1)

Vendor Advisories for CVE-2026-48073 (1)

Vendor Pages for CVE-2026-48073 (1)

Same Patch Batch · docmost · 2026-09-24 · 6 CVEs total

CVE-2026-48070 7.1 HIGH Docmost: Avatar URL path traversal in avatar cleanup leads to arbitrary local file deletio
CVE-2026-65827 6.5 MEDIUM Docmost: Unbounded ZIP decompression (zip-bomb) in page import allows denial of service
CVE-2026-48072 5.3 MEDIUM Docmost: Public image fileName path traversal leads to unauthorized local file read
CVE-2026-52853 5.2 MEDIUM Docmost: Privilege Escalation - ADMIN Can Invite Users as OWNER
CVE-2026-52850 4.3 MEDIUM Docmost: Broken access control in transclusion lookup API leaks sync-block content across

IV. Related Vulnerabilities

Same product: docmost
Same vendor: docmost
Same weakness: CWE-639

V. Comments for CVE-2026-48073

No comments yet

Leave a comment