CVE-2026-7702 - toeverything AFFiNE Public Markdown Preview Endpoint :docId allowDocPreview authorization

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MEDIUM

toeverything AFFiNE Public Markdown Preview Endpoint :docId allowDocPreview authorization

Published May 3, 2026

6.9

MEDIUM

CVSS 4.0

EPSS 0.52%

Description

A vulnerability was detected in toeverything AFFiNE up to 0.26.3. This issue affects the function allowDocPreview of the file /workspace/:workspaceId/:docId of the component Public Markdown Preview Endpoint. The manipulation results in authorization bypass. It is possible to launch the attack remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

Vendor Toeverything Product AFFiNE Default
n/a
- Version
  0.26.0
  Status
  affected
  Constraints
  -
- Version
  0.26.1
  Status
  affected
  Constraints
  -
- Version
  0.26.2
  Status
  affected
  Constraints
  -
- Version
  0.26.3
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Toeverything

AFFiNE

n/a

Version	Status	Constraints
0.26.0	affected	-
0.26.1	affected	-
0.26.2	affected	-
0.26.3	affected	-

Remediation

No remediation recorded yet.

Weaknesses (2)

CWE-285

CWE-639

Authorization Bypass

References (5)

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-26840
Advisory
https://github.com/ngocnn97/security-advisories/blob/main/AFFiNE_BAC_PoC.mp4
exploit
https://vuldb.com/submit/804455
third-party-advisory
https://vuldb.com/vuln/360871
vdb-entrytechnical-description
https://vuldb.com/vuln/360871/cti
signaturepermissions-required

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-26840		Advisory
https://github.com/ngocnn97/security-advisories/blob/main/AFFiNE_BAC_PoC.mp4		exploit
https://vuldb.com/submit/804455		third-party-advisory
https://vuldb.com/vuln/360871		vdb-entrytechnical-description
https://vuldb.com/vuln/360871/cti		signaturepermissions-required