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.
CVSS 7.1EPSS 0.243%Risk 0.73
View source- Published
- 2026-07-20 19:17:29
- Affected versions
- <5.4.3
- Type
- Web application
- Last modified
- 2026-07-23 15:24:59
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N