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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.

PUBLISHED Reserved 2026-05-02 | Published 2026-05-03 | Updated 2026-05-03 | Assigner VulDB




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
MEDIUM: 5.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
5.0AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR

Problem types

Authorization Bypass

Improper Authorization

Product status

0.26.0
affected

0.26.1
affected

0.26.2
affected

0.26.3
affected

Timeline

2026-05-02:Advisory disclosed
2026-05-02:VulDB entry created
2026-05-02:VulDB entry last update

Credits

ngocnn97 (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/360871 (VDB-360871 | toeverything AFFiNE Public Markdown Preview Endpoint :docId allowDocPreview authorization) vdb-entry technical-description

vuldb.com/vuln/360871/cti (VDB-360871 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/804455 (Submit #804455 | AFFiNE AFFiNE (https://github.com/toeverything/AFFiNE) 0.26.3 Authorization Bypass) third-party-advisory

github.com/...curity-advisories/blob/main/AFFiNE_BAC_PoC.mp4 exploit

cve.org (CVE-2026-7702)

nvd.nist.gov (CVE-2026-7702)

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