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CVE-2026-38949

8.9 · HIGH

Cross-Site Scripting (XSS) vulnerability exists in HTMLy version 3.1.1 in the content creation functionality at the /add/content?type=image endpoint.

Published Apr 28, 2026CWE-79EPSS 0.41%

Overview

CVE-2026-38949 is a high-severity vulnerability. It was published on April 28, 2026 and has a CVSS 3.1 base score of 8.9 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.9, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/Chittu13/cve-research/blob/main/CVE-2026-38949/README.mdGitHubgithub.com/danpros/htmlyRefyoutu.be/3e-tzUMCox8GitHubgithub.com/Chittu13/cve-research/blob/main/CVE-2026-38949/README.md

How CyberStrike helps

Frequently asked questions

What is CVE-2026-38949?

CVE-2026-38949 is a high-severity vulnerability. It was published on April 28, 2026 and has a CVSS 3.1 base score of 8.9 (HIGH).

How severe is CVE-2026-38949?

This vulnerability has a CVSS 3.1 base score of 8.9, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-38949?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-38949?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-38949 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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