SEPTEMBER 7, 2026
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Case File

CVE-2026-63771

HIGH · CVSS 7.1 EPSS 0.24% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-20 · Last synced 2026-08-19

CyberRota Analysis

AI-Generated

Adminer versions prior to 5.4.3 are vulnerable to a cookie injection flaw that allows attackers to manipulate cookie attributes via the unsanitized X-Forwarded-Prefix HTTP header. This vulnerability can lead to the downgrading of SameSite protections, enabling cross-origin authenticated requests and bypassing cookie security controls. Organizations using Adminer, particularly those with misconfigured reverse proxies, should prioritize patching to mitigate potential exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-63771
Severity
HIGH
CVSS
7.1
EPSS
0.24%

Original NVD 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.