What’s Vulnerable › Vulnerabilities

CVE-2026-66745: Artica Proxy 4.50 Session Fixation via fw.login.php

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-28 · updated 2026-10-23
• Weakness: CWE-94

Description

Artica Proxy before 4.50.000000 Service Pack 7 (fixed in hotfix 20260724-02) contains a session fixation vulnerability that allows unauthenticated attackers to hijack administrative sessions by setting a known PHPSESSID on a victim's browser prior to authentication. Attackers can pre-set a controlled session identifier and wait for a victim to authenticate through fw.login.php, after which the attacker gains a fully authenticated administrative session on port 9000.

Affected products

• Artica Tech Artica Proxy: through 4.50.000000 Service Pack 6; 4.50.000000

References

• https://wiki.articatech.com/maintenance/upgrade-artica/hotfix-450000000
• https://www.articatech.com/hotfixes.php?main=4.50.000000&sp=7
• https://www.vulncheck.com/advisories/artica-proxy-session-fixation-via-fw-login-php

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