CVE-2026-108740

GoatCounter through 2.7.0 Privilege Escalation via /user/pref Mass Assignment

Published Oct 11, 2026 CVSS 4.0 · 7.2 High EPSS < 1% KEV · Not listed
Description
GoatCounter through 2.7.0 contains a mass assignment privilege escalation vulnerability in the userPrefSave handler that allows logged-in users to modify protected account fields via form-encoded requests. Attackers with read-only access can POST user.access[all]=* and user.email_verified=true to /user/pref, bypassing readonly tags to gain superuser or admin access.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Arp242
Arp242 goatcounter
Vendors & Products Arp242
Arp242 goatcounter
Type Values Removed Values Added
Description GoatCounter through 2.7.0 contains a mass assignment privilege escalation vulnerability in the userPrefSave handler that allows logged-in users to modify protected account fields via form-encoded requests. Attackers with read-only access can POST user.access[all]=* and user.email_verified=true to /user/pref, bypassing readonly tags to gain superuser or admin access.
Title GoatCounter through 2.7.0 Privilege Escalation via /user/pref Mass Assignment
Weaknesses CWE-915
References
Metrics cvssV3_1

{'score': 8.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H'}

cvssV4_0

{'score': 7.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 13, 2026, 1:28 PM
Reserved
Oct 11, 2026, 1:52 AM
Status
Deferred
Published
Oct 11, 2026, 1:17 PM
Modified
Oct 16, 2026, 7:18 PM