CVE-2020-26693

FAUCET Score

CVE-2020-26693 is a stored cross-site scripting (XSS) vulnerability affecting pfSense version 2.4.5-p1. An authenticated attacker can exploit this by injecting arbitrary web scripts through the load_balancer_monitor.php function. This vulnerability has a CVSS score of 5.4 (Medium), indicating it can be exploited over the network with low complexity, requiring user interaction, and resulting in limited impact to confidentiality and integrity. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		2.4.5CPE matchmatch criteria	cpe:2.3:a:pfsense:pfsense:2.4.5:p1::::::

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

Exploitability Score

2.3

Impact Score

2.7

CvssVersion

3.1

Exploit Intelligence

EPSS Score

5.31%

Probability of exploitation in next 30 days

EPSS Percentile

91.8%

Percentile rank of EPSS score among Peer Group

As of 2026-07-28

Model: v2026.06.15

This CVE's current EPSS score of 0.0531 is in the 99th percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference

View patch

References

github.com / pfsense/pfsense/commit/a220a22a8c05c10a7b875ac6b565f2c4fe7b251c

PatchThird Party Advisory