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CVE-2026-111350— Papermark through 0.22.0 Missing Authorization in Data Room Viewer Group API

Quick assessment

Affected
papermark Papermark
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.

Papermark 在 0.22.0 及更早版本中存在一个缺失授权验证的安全漏洞，位于数据空间（Data Room）查看者组 API 中。该漏洞允许已认证的用户删除其他团队的查看者组及共享链接。攻击者如果掌握受害者团队的数据空间 ID 和组 ID，可以发送 DELETE 请求、读取组链接，或者跨团队篡改组内文档的权限。

CVSS 5.0 · Medium

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-111350

Vulnerability Information
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Vulnerability Title
Papermark through 0.22.0 Missing Authorization in Data Room Viewer Group API
Source: CVE Program / CVE List V5
Vulnerability Description
Papermark through 0.22.0 contains a missing authorization vulnerability in the data room viewer group API that allows authenticated users to delete other teams' viewer groups and share links. Attackers who know a victim team's data room and group identifiers can send DELETE requests, read group links, or rewrite group document permissions across teams.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
papermark Papermark 0 ~ 0.22.0 -

II. Public POCs for CVE-2026-111350

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III. Intelligence Information for CVE-2026-111350

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Patches & Fixes for CVE-2026-111350 (2)

Vendor Advisories for CVE-2026-111350 (1)

Security Blog Posts for CVE-2026-111350 (1)

Vendor Pages for CVE-2026-111350 (1)

Other References for CVE-2026-111350 (1)

IV. Related Vulnerabilities

Same product: Papermark
Same vendor: papermark
Same weakness: CWE-862

V. Comments for CVE-2026-111350

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