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TI-2020-16246 Aliases CVE-2020-26693GHSA-hrmg-qfwm-rm4f

A stored cross-site scripting (XSS) vulnerability was discovered in pfSense 2.4.5-p1…

Priority LOW 33CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

EPSS 0.05313 92nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:pfsense:pfsense:2.4.5:p1:*:*:*:*:*:*2.4.5 p1VulnerablepfSense
  • cpe:2.3:a:pfsense:pfsense:2.4.5:p1:*:*:*:*:*:* Versions 2.4.5 p1 Vulnerable ·pfSense

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-26693
  2. 2026-10-03 Alias added: GHSA-hrmg-qfwm-rm4f

References

Patch 1

  • TI-2023-11923 Improper restriction of excessive authentication attempts in the SSHGuard component of… CVSS 3.1CRITICAL 9.8
  • TI-2021-18114 diag_routes.php in pfSense 2.5.2 allows sed data injection. CVSS 3.1HIGH 8.8
  • TI-2025-42916 Netgate pfSense CE 2.8.0 allows code execution in the XMLRPC API via pfsense.exec_php. CVSS 3.1CRITICAL 9.9
  • TI-2025-42915 Netgate pfSense CE 2.7.2 allows code execution by using the module installer with a… CVSS 3.1CRITICAL 9.1
  • TI-2026-74961 OS command injection in Netgate pfSense CE traffic shaper limiters CVSS 4.0HIGH 8.6
  • TI-2026-74960 OS command injection in Netgate pfSense CE via CARP VHID CVSS 4.0HIGH 8.6
See all 37 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences