CVE-2026-63771
6
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| vrana | adminer | 0 < 5.4.3 | affected |
Weaknesses
- CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: partial
References
- https://github.com/vrana/adminer/issues/1298
- https://github.com/vrana/adminer/security/advisories/GHSA-c533-9qwm-8w5h
- https://github.com/vrana/adminer/releases#release-v5.4.3
- https://www.vulncheck.com/advisories/adminer-cookie-injection-via-x-forwarded-prefix-header
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