CVE-2023-24539

Name: CVE-2023-24539
Creator: NVD / NIST
Published: 2023-05-11T16:15:09.6+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.3/10EPSS 1.03%

Last modified Jun 17, 2026

CVE-2023-24539 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. Angle brackets (<>) are not considered dangerous characters when inserted into CSS contexts. Templates containing multiple actions separated by a '/' character can result in unexpectedly closing the CSS context and allowing for injection of unexpected HTML, if executed with untrusted input.. EPSS estimates a 1.03% chance of exploitation in the next 30 days.

Description

Angle brackets (<>) are not considered dangerous characters when inserted into CSS contexts. Templates containing multiple actions separated by a '/' character can result in unexpectedly closing the CSS context and allowing for injection of unexpected HTML, if executed with untrusted input.

Metrics

CVSS 3.1

7.3/10

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

EPSS Probability

1.03%

59.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Golang	Go	< 1.19.9
Golang	Go	>= 1.20.0, < 1.20.4

References

https://go.dev/cl/491615Patch
https://go.dev/issue/59720Issue Tracking, Patch
https://groups.google.com/g/golang-announce/c/MEb0UyuSMsUMailing List, Release Notes
https://pkg.go.dev/vuln/GO-2023-1751Vendor Advisory
https://go.dev/cl/491615Patch
https://go.dev/issue/59720Issue Tracking, Patch
https://groups.google.com/g/golang-announce/c/MEb0UyuSMsUMailing List, Release Notes
https://pkg.go.dev/vuln/GO-2023-1751Vendor Advisory
https://security.netapp.com/advisory/ntap-20241129-0005/

Timeline

Published: May 11, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-24539?

How severe is CVE-2023-24539?

CVE-2023-24539 has a CVSS score of 7.3/10 (HIGH severity). The EPSS model estimates a 1.03% probability of exploitation in the next 30 days.

How do I fix CVE-2023-24539?

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-2023-24539?

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

Scan your code now

Source: NVD / NIST