CVE-2026-84205
CVE-2026-84205
GROWI contains an access control vulnerability in the GET /_api/v3/revisions/:id endpoint that validates access against a query parameter but returns the revision identified by the path parameter without confirming they reference the same page. Authenticated attackers can pair a page identifier they can access with an arbitrary revision identifier to read revision content from pages they lack permission to view.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (34.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Weakness classification (CWE)
References
- github.com/growilabs/growi (product)
- github.com/growilabs/growi/pull/11810 (issue-tracking, patch)
- github.com/growilabs/growi/commit/d298e0b1dbbf568c99db657fa0f7e90f72ddc59b (patch)
- github.com/growilabs/growi/blob/v8.0.2/apps/app/src/server/routes/apiv3/revisio… (technical-description)
- www.vulncheck.com/advisories/growi-through-8.0.2-authorization-bypass-through-u… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-84205?
- CVE-2026-84205 is a medium-severity vulnerability, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-09-01.
- How severe is CVE-2026-84205?
- Medium severity. CVSS v3 base score is 6.5 out of 10.