CVE-2026-59805Network attack vector

Cross-seller access manipulation via missing ownership guard

Published Jul 8, 2026 · Updated Jul 8, 2026

Missing authorization in Gumroad before 2026.07.06.2 allows remote authenticated users to alter buyer access to another seller's products. The two PurchasesController actions loaded a purchase by external ID but omitted the before_action that verifies the current seller owns it. A seller account and another purchase's external ID are required; successful requests revoke or restore that buyer's access.

CVSS severity7.1
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Gumroad before 2026.07.06.2 allows remote authenticated users to alter buyer access to another seller's products. The two PurchasesController actions loaded a purchase by external ID but omitted the before_action that verifies the current seller owns it. A seller account and another purchase's external ID are required; successful requests revoke or restore that buyer's access.

The record

CVE
CVE-2026-59805
Published
Jul 8, 2026
Updated
Jul 8, 2026
Vendor
Gumroad
Product
Gumroad
Classifications
CWE-862, T1531
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2026.07.06.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Gumroad · Gumroadversion=0 <2026.07.06.2

Published CVSS scores

7.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
6.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1531Account Access Removal

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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