What’s Vulnerable › Vulnerabilities

CVE-2024-57273

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-05-14 · updated 2026-07-05
• Weakness: CWE-79

Description

Netgate pfSense CE (prior to 2.8.0 beta release) and corresponding Plus builds is vulnerable to Cross-site scripting (XSS) in the Automatic Configuration Backup (ACB) service, allowing remote attackers to execute arbitrary JavaScript, delete backups, or leak sensitive information via an unsanitized "reason" field and a derivable device key generated from the public SSH key.

Affected products

• Netgate Pfsense Ce: before 2.8.0 — fixed in 2.8.0
• Netgate Pfsense Plus: before 25.03 — fixed in 25.03

How to fix

Upgrade to a fixed version: Netgate Pfsense Ce 2.8.0; Netgate Pfsense Plus 25.03. Check the vendor advisory for mitigations.

References

• https://blog.brillantit.com/exploiting-pfsense-xss-command-injection-cloud-hijack/
• https://docs.netgate.com/downloads/pfSense-SA-25_03.webgui.asc
• https://www.netgate.com/blog/important-security-updates-for-pfsense-plus-24.11-and-ce-2.7.2

Get alerted when CVE-2024-57273 or the next vulnerability affects your stack