Is CVE-2026-38949 in the CISA KEV catalog?

No. CVE-2026-38949 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-38949?

CVE-2026-38949 has a CVSS v3 base score of 8.9 (HIGH).

What is the EPSS score for CVE-2026-38949?

CVE-2026-38949 has an EPSS score of 0.36% (27th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2026-38949

HIGH

8.9

CVSS v3

NVD

Description

Cross-Site Scripting (XSS) vulnerability exists in HTMLy version 3.1.1 in the content creation functionality at the /add/content?type=image endpoint. The application fails to properly sanitize user input, allowing injection of arbitrary code

CWE-79Cross-Site Scripting (XSS)

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionRequired

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityLow

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

Exploit Intelligence

0.36%probability of exploitation in 30 days

27thpercentile

Low risk: more likely to be exploited than 27% of all known CVEs.

References

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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 2026-05-10.