CVE-2019-25225

Name: CVE-2019-25225
Creator: NVD / NIST
Published: 2025-09-08T10:15:33.44+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.25%

Last modified Jun 17, 2026

CVE-2019-25225 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. `sanitize-html` prior to version 2.0.0-beta is vulnerable to Cross-site Scripting (XSS). The `sanitizeHtml()` function in `index.js` does not sanitize content when using the custom `transformTags` option, which is intended to convert attribute values into text. EPSS estimates a 0.25% chance of exploitation in the next 30 days.

Description

`sanitize-html` prior to version 2.0.0-beta is vulnerable to Cross-site Scripting (XSS). The `sanitizeHtml()` function in `index.js` does not sanitize content when using the custom `transformTags` option, which is intended to convert attribute values into text. As a result, malicious input can be transformed into executable code.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.25%

16.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Apostrophecms	Sanitize-Html	< 2.0.0

References

https://github.com/Checkmarx/Vulnerabilities-Proofs-of-Concept/tree/main/2019/CVE-2019-25225Exploit, Third Party Advisory
https://github.com/apostrophecms/sanitize-html/commit/712cb6895825c8bb6ede71a16b42bade42abcaf3Patch
https://github.com/apostrophecms/sanitize-html/issues/293Issue Tracking, Vendor Advisory
https://github.com/apostrophecms/sanitize-html/pull/156Issue Tracking, Patch

Timeline

Published: Sep 8, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2019-25225?

How severe is CVE-2019-25225?

CVE-2019-25225 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.

How do I fix CVE-2019-25225?

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-2019-25225?

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

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Source: NVD / NIST