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CVE-2019-25225

Published: Sep 8, 2025

Modified: Sep 8, 2025

PUBLISHED

CVSS v3.1

6.1

MEDIUM

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.

Vendor	Product	Versions
Unknown	sanitize-html	affected `0 - < 2.0.0-beta`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

References

https://github.com/apostrophecms/sanitize-html/issues/293

issue-tracking

https://github.com/apostrophecms/sanitize-html/pull/156

https://github.com/apostrophecms/sanitize-html/commit/712cb6895825c8bb6ede71a16b42bade42abcaf3

patch

https://github.com/Checkmarx/Vulnerabilities-Proofs-of-Concept/tree/main/2019/CVE-2019-25225

exploit

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