CVE-2026-108740GoatCounter through 2.7.0 Privilege Escalation via /user/pref Mass Assignment
Updated under an hour ago ()
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It affects arp242 GoatCounter. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.33%, higher than 24% of scored CVEs.
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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.
- CVSS
- 8.3 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
- Weakness (CWE)
- CWE-915
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.33% (percentile 24)
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 13, 2026
- First seen by InfoSec Signals
- Oct 11, 2026
Affected products
arp242 GoatCounter arp242:goatcounter (from the name) | through 2.7.0 | CNA record |
References
- https://hackmd.io/@haind03/goatcounter-user-pref-access-mass-assignment-20261011third-party-advisory
- https://github.com/arp242/goatcounter/blob/7e91d8a9bdbb0dd48496e498c5680f8f3477a1b4/handlers/settings_user.go#L33-L99technical-description
- https://github.com/arp242/goatcounter/blob/7e91d8a9bdbb0dd48496e498c5680f8f3477a1b4/user.go#L191-L218technical-description
- https://github.com/arp242/goatcounterproduct
- https://www.vulncheck.com/advisories/goatcounter-through-2.7.0-privilege-escalation-via-user-pref-mass-assignmentthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.