CVE-2026-88898CWE-862broken-access-control

CVE-2026-88898

Medium · published September 10, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
31.8
In the wild
Unconfirmed
What it is

AppFlowy-Cloud versions 0.7.2 through 0.9.64 fail to authorize callers against the workspace in the bulk publish endpoint path, allowing authenticated users to publish content into other tenants' namespaces. Attackers can write published views with attacker-controlled title, body and metadata into victim workspaces to deface public pages or host phishing content on trusted URLs.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0
7.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00389 · 31.8th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-09-10T19:17Z
References (5)
https://gist.github.com/mtholmquist/ab550712a4628c7c7c4705bceccd93b3 · [email protected]https://github.com/AppFlowy-IO/AppFlowy-Cloud · [email protected]https://github.com/AppFlowy-IO/AppFlowy-Cloud/blob/0.9.64/src/api/workspace.rs · [email protected]https://github.com/AppFlowy-IO/AppFlowy-Cloud/blob/0.9.64/src/biz/workspace/publish.rs · [email protected]https://www.vulncheck.com/advisories/appflowy-cloud-0.7.2-through-0.9.64-missing-workspace-authorization-on-bulk-publish-endpoint · [email protected]
EPSS history
Timeline
  • 12 SEP 03:22Z
    EPSS moved — → 0%
    epss
  • 10 SEP 14:46Z
    AppFlowy-Cloud 0.7.2 through 0.9.64 Missing Workspace Authorization on Bulk Publish Endpoint
    cvelistv5