What’s Vulnerable › Vulnerabilities

CVE-2019-25398: IPFire 2.21 Core Update 127 Cross-Site Scripting via ovpnmain.cgi

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-02-18 · updated 2026-06-17
• Weakness: CWE-79

Description

IPFire 2.21 Core Update 127 contains multiple cross-site scripting vulnerabilities in the ovpnmain.cgi script that allow attackers to inject malicious scripts through VPN configuration parameters. Attackers can submit POST requests with script payloads in parameters like VPN_IP, DMTU, ccdname, ccdsubnet, DOVPN_SUBNET, DHCP_DOMAIN, DHCP_DNS, DHCP_WINS, ROUTES_PUSH, FRAGMENT, KEEPALIVE_1, and KEEPALIVE_2 to execute arbitrary JavaScript in administrator browsers.

Affected products

• IPFire.org IPFire: 2.21-core_update127

References

• https://downloads.ipfire.org/releases/ipfire-2.x/2.21-core127/ipfire-2.21.x86_64-full-core127.iso
• https://www.exploit-db.com/exploits/46344
• https://www.ipfire.org
• https://www.vulncheck.com/advisories/ipfire-core-update-cross-site-scripting-via-ovpnma

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