Auth bypass in Antiwork Gumroad
CVE-2026-59805
Gumroad before 2026.07.06.2 contains a broken access control vulnerability in the PurchasesController that allows authenticated sellers to manipulate purchase access for other sellers' products by sending PUT requests to the revoke_access and undo_revoke_access actions without seller ownership validation. Attackers can modify the is_access_revoked status on arbitrary purchases to unauthorized revoke or restore buyer access to products they do not own.
Vulnerability class: Broken Access Control
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:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (30.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Antiwork Gumroad — versions 0
Weakness classification (CWE)
References
- github.com/antiwork/gumroad/commit/e7fd0e610e73135ecf1aa07c197a36fa524832e1 (patch)
- github.com/antiwork/gumroad/issues/5725 (technical-description)
- github.com/antiwork/gumroad/pull/5731 (issue-tracking)
- github.com/antiwork/gumroad/releases/tag/v2026.07.06.2 (release-notes)
- www.vulncheck.com/advisories/gumroad-insecure-direct-object-reference-in-purcha… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-59805?
- CVE-2026-59805 is a medium-severity vulnerability in Antiwork Gumroad, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-07-08.
- How severe is CVE-2026-59805?
- Medium severity. CVSS v3 base score is 6.5 out of 10.