Authorization Bypass Vulnerability in AFFiNE by toeverything
CVE-2026-7702

6.9MEDIUM

Key Information:

Vendor

Toeverything

Status
Affine
Vendor
CVE Published:
3 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7702?

A vulnerability has been identified in toeverything AFFiNE versions up to 0.26.3, specifically within the 'allowDocPreview' function of the Public Markdown Preview Endpoint. This flaw enables an unauthorized actor to bypass authorization controls, potentially exposing sensitive documents to unauthorized access. The issue allows for remote exploitation, increasing the severity of the risk. Notably, the vendor was contacted prior to this public disclosure but has not provided a response or remediation.

Affected Version(s)

AFFiNE 0.26.0

AFFiNE 0.26.1

AFFiNE 0.26.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-7702 - Proof of Concept

References

https://vuldb.com/vuln/360871
vdb-entrytechnical-description
https://vuldb.com/vuln/360871/cti
signaturepermissions-required
https://vuldb.com/submit/804455
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

ngocnn97 (VulDB User)
VulDB CNA Team
.