What’s Vulnerable › Vulnerabilities

CVE-2026-59805: Gumroad < 2026.07.06.2 - Insecure Direct Object Reference in PurchasesController

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-08 · updated 2026-10-25
• Weakness: CWE-862

Description

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.

Affected products

• antiwork gumroad: before 2026.07.06.2 — fixed in 2026.07.06.2

How to fix

Upgrade to a fixed version: antiwork gumroad 2026.07.06.2. Check the vendor advisory for mitigations.

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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