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.

CVSS 4.0

7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS

0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-25)

CWE

CWE-862

Published

2026-07-08

Modified

2026-10-25

Record from

the NVD, synced 2026-10-25

References

• https://github.com/antiwork/gumroad/commit/e7fd0e610e73135ecf1aa07c197a36fa524832e1
• https://github.com/antiwork/gumroad/issues/5725
• https://github.com/antiwork/gumroad/pull/5731
• https://github.com/antiwork/gumroad/releases/tag/v2026.07.06.2
• https://www.vulncheck.com/advisories/gumroad-insecure-direct-object-reference-in-purchasescontroller

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