CVE-2021-32696

Name: CVE-2021-32696
Creator: NVD / NIST
Published: 2021-06-18T20:15:07.633+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 1.08%

Last modified Jun 17, 2026

CVE-2021-32696 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. The npm package "striptags" is an implementation of PHP's strip_tags in Typescript. In striptags before version 3.2.0, a type-confusion vulnerability can cause `striptags` to concatenate unsanitized strings when an array-like object is passed in as the `html` parameter. EPSS estimates a 1.08% chance of exploitation in the next 30 days.

Description

The npm package "striptags" is an implementation of PHP's strip_tags in Typescript. In striptags before version 3.2.0, a type-confusion vulnerability can cause `striptags` to concatenate unsanitized strings when an array-like object is passed in as the `html` parameter. This can be abused by an attacker who can control the shape of their input, e.g. if query parameters are passed directly into the function. This can lead to a XSS.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

1.08%

60.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Striptags Project	Striptags	< 3.2.0

References

https://github.com/ericnorris/striptags/commit/f252a6b0819499cd65403707ebaf5cc925f2facaPatch, Third Party Advisory
https://github.com/ericnorris/striptags/releases/tag/v3.2.0Third Party Advisory
https://github.com/ericnorris/striptags/security/advisories/GHSA-qxg5-2qff-p49rThird Party Advisory
https://www.npmjs.com/package/striptagsProduct, Third Party Advisory
https://github.com/ericnorris/striptags/commit/f252a6b0819499cd65403707ebaf5cc925f2facaPatch, Third Party Advisory
https://github.com/ericnorris/striptags/releases/tag/v3.2.0Third Party Advisory
https://github.com/ericnorris/striptags/security/advisories/GHSA-qxg5-2qff-p49rThird Party Advisory
https://www.npmjs.com/package/striptagsProduct, Third Party Advisory

Timeline

Published: Jun 18, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-32696?

How severe is CVE-2021-32696?

CVE-2021-32696 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.08% probability of exploitation in the next 30 days.

How do I fix CVE-2021-32696?

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-2021-32696?

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

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Source: NVD / NIST