Is CVE-2024-57273 in the CISA KEV catalog?

No. CVE-2024-57273 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-57273?

CVE-2024-57273 has a CVSS v3 base score of 5.4 (MEDIUM).

What is the EPSS score for CVE-2024-57273?

CVE-2024-57273 has an EPSS score of 1.18% (64th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-57273?

Upgrade pfsense ce to 2.8.0 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2024-57273

MEDIUM

5.4

CVSS v3

NVD

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.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

pfsense ceNVD

Affected:< 2.8.0Fixed in:2.8.0CVE-2024-57273derived from NVD

pfsense plusNVD

Affected:< 25.03Fixed in:25.03CVE-2024-57273derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

1.18%probability of exploitation in 30 days

64thpercentile

Moderate risk: more likely to be exploited than 64% of all known CVEs.

References

Exploit1

blog.brillantit.com

Third-Party Advisory1

docs.netgate.com

Release Notes1

netgate.com

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-05.