CVE-2026-38949

Name: CVE-2026-38949
Creator: NVD / NIST
Published: 2026-04-28T19:37:38.937+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.9/10EPSS 0.36%

Last modified Jun 17, 2026

CVE-2026-38949 is a high-severity vulnerability rated 8.9/10 on the CVSS scale. 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. EPSS estimates a 0.36% chance of exploitation in the next 30 days.

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

Metrics

CVSS 3.1

8.9/10

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

EPSS Probability

0.36%

27.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

References

Timeline

Published: Apr 28, 2026
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2026-38949?

How severe is CVE-2026-38949?

CVE-2026-38949 has a CVSS score of 8.9/10 (HIGH severity). The EPSS model estimates a 0.36% probability of exploitation in the next 30 days.

How do I fix CVE-2026-38949?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-38949?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST