Is CVE-2024-28199 in the CISA KEV catalog?

No. CVE-2024-28199 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-28199?

CVE-2024-28199 has a CVSS v3 base score of 7.1 (HIGH).

What is the EPSS score for CVE-2024-28199?

CVE-2024-28199 has an EPSS score of 0.60% (45th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-28199?

Upgrade phlex to 1.3.3 or later.

CVE & CISA-KEV Catalog

CVE-2024-28199

HIGH

7.1

CVSS v3

NVD

Description

phlex is an open source framework for building object-oriented views in Ruby. There is a potential cross-site scripting (XSS) vulnerability that can be exploited via maliciously crafted user data. This was due to improper case-sensitivity in the code that was meant to prevent these attacks. If you render an ` ` tag with an `href` attribute set to a user-provided link, that link could potentially execute JavaScript when clicked by another user. If you splat user-provided attributes when rendering any HTML tag, malicious event attributes could be included in the output, executing JavaScript when the events are triggered by another user. Patches are available on RubyGems for all 1.x minor versions. Users are advised to upgrade. Users unable to upgrade should consider configuring a content security policy that does not allow `unsafe-inline`.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

phlexNVD

Affected:>= 1.3.0, < 1.3.3Fixed in:1.3.3CVE-2024-28199derived 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 RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.60%probability of exploitation in 30 days

45thpercentile

Moderate risk: more likely to be exploited than 45% of all known CVEs.

References

Patch2

Technical Description2

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 2025-04-23.