Auth bypass in Prestashop Psgdpr
CVE-2026-92809
PrestaShop psgdpr versions through 1.4.3 fail to validate that GDPR consent log entries are attributed to the authenticated customer. Authenticated attackers can submit arbitrary customer identifiers to create forged consent records for other customers, corrupting audit logs.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (27.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/geo-chen/oss/blob/main/prestashop.md (technical-description, exploit)
- github.com/PrestaShop/psgdpr/blob/v1.4.3/controllers/front/FrontAjaxGdpr.php (technical-description)
- github.com/PrestaShop/psgdpr (product)
- www.vulncheck.com/advisories/prestashop-psgdpr-through-1.4.3-gdpr-log-forgery (third-party-advisory)
Frequently asked questions
- What is CVE-2026-92809?
- CVE-2026-92809 is a medium-severity vulnerability in Prestashop Psgdpr, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-09-16.
- How severe is CVE-2026-92809?
- Medium severity. CVSS v3 base score is 4.3 out of 10.