CVE-2023-45132 is a critical vulnerability in NAXSI, an open-source NGINX web application firewall, affecting versions 1.3 through 1.5. An attacker can bypass WAF protections by crafting a malicious X-Forwarded-For IP that matches IgnoreIP or IgnoreCIDR rules, originally intended for older NGINX versions with multiple reverse proxies. With a CVSS score of 9.8 (CRITICAL), this vulnerability allows for complete compromise of confidentiality, integrity, and availability, requiring no user interaction or privileges. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.3, < 1.6CPE matchmatch criteria | cpe:2.3:a:wargio:naxsi:*:*:*:*:*:nginx:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.