VULNERABILITY INTELLIGENCE
CVE-2026-63771
CVSS score7.1 HIGH
EPSS probability0.43%
CISA KEVNot currently listed
Published2026-07-20
Last modified2026-10-24
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
Description
Adminer before 5.4.3 contains a cookie injection vulnerability that allows attackers to manipulate cookie attributes by injecting arbitrary values through the unsanitized X-Forwarded-Prefix HTTP header used in Set-Cookie path attributes. Attackers can exploit a misconfigured reverse proxy to downgrade SameSite protection and enable cross-origin authenticated requests, bypassing cookie security controls.
Weakness classification
- disclosure@vulncheck.com: CWE-113