XSS in Pfsense

CVE-2020-26693

A stored cross-site scripting (XSS) vulnerability was discovered in pfSense 2.4.5-p1 which allows an authenticated attacker to execute arbitrary web scripts via exploitation of the load_balancer_monitor.php function.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.053 (91.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

  • Pfsense — versions 2.4.5
  • N/a — versions n/a

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-26693?
CVE-2020-26693 is a medium-severity vulnerability in Pfsense, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-06-01.
How severe is CVE-2020-26693?
Medium severity. CVSS v3 base score is 5.4 out of 10.