CVE-2024-21501

Name: CVE-2024-21501
Creator: NVD / NIST
Published: 2024-02-24T05:15:44.31+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 1.02%

Last modified Jun 17, 2026

CVE-2024-21501 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Versions of the package sanitize-html before 2.12.1 are vulnerable to Information Exposure when used on the backend and with the style attribute allowed, allowing enumeration of files in the system (including project dependencies). An attacker could exploit this vulnerability to gather details about the file system structure and dependencies of the targeted server.. EPSS estimates a 1.02% chance of exploitation in the next 30 days.

Description

Versions of the package sanitize-html before 2.12.1 are vulnerable to Information Exposure when used on the backend and with the style attribute allowed, allowing enumeration of files in the system (including project dependencies). An attacker could exploit this vulnerability to gather details about the file system structure and dependencies of the targeted server.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

1.02%

59.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Apostrophecms	Sanitize-Html	< 2.12.1
Fedoraproject	Fedora	39
Fedoraproject	Fedora	40

References

https://gist.github.com/Slonser/8b4d061abe6ee1b2e10c7242987674cfExploit, Third Party Advisory
https://github.com/apostrophecms/apostrophe/discussions/4436Issue Tracking
https://github.com/apostrophecms/sanitize-html/commit/c5dbdf77fe8b836d3bf4554ea39edb45281ec0b4Patch
https://github.com/apostrophecms/sanitize-html/pull/650Patch
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EB5JPYRCTS64EA5AMV3INHDPI6I4AW7/Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P4I5X6V3LYUNBMZ5YOW4BV427TH3IK4S/Mailing List
https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-6276557Exploit, Third Party Advisory
https://security.snyk.io/vuln/SNYK-JS-SANITIZEHTML-6256334Exploit, Third Party Advisory
https://gist.github.com/Slonser/8b4d061abe6ee1b2e10c7242987674cfExploit, Third Party Advisory
https://github.com/apostrophecms/apostrophe/discussions/4436Issue Tracking
https://github.com/apostrophecms/sanitize-html/commit/c5dbdf77fe8b836d3bf4554ea39edb45281ec0b4Patch
https://github.com/apostrophecms/sanitize-html/pull/650Patch
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EB5JPYRCTS64EA5AMV3INHDPI6I4AW7/Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P4I5X6V3LYUNBMZ5YOW4BV427TH3IK4S/Mailing List
https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-6276557Exploit, Third Party Advisory
https://security.snyk.io/vuln/SNYK-JS-SANITIZEHTML-6256334Exploit, Third Party Advisory

Timeline

Published: Feb 24, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-21501?

How severe is CVE-2024-21501?

CVE-2024-21501 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.02% probability of exploitation in the next 30 days.

How do I fix CVE-2024-21501?

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-2024-21501?

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

Scan your code now

Source: NVD / NIST