CVE-2023-24539

Improper sanitization of CSS values in html/template

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.

Categories

7.3
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.07%
Vendor Advisory go.dev
Affected: Go standard library html/template
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2023-24539?
CVE-2023-24539 has been scored as a high severity vulnerability.
How to fix CVE-2023-24539?
To fix CVE-2023-24539, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-24539 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-24539 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-24539?
CVE-2023-24539 affects Go standard library html/template.
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