GO-2023-2043

Improper handling of special tags within script contexts in html/template

At a glance

Published
Updated
CVE
CVE-2023-39319
Aliases
BIT-golang-2023-39319

Description

The html/template package does not apply the proper rules for handling occurrences of "<script", "<!--", and "</script" within JS literals in <script> contexts. This may cause the template parser to improperly consider script contexts to be terminated early, causing actions to be improperly escaped. This could be leveraged to perform an XSS attack.

Affected packages

PackageVersions
Go · stdlibintroduced 0, fixed 1.20.8, introduced 1.21.0-0, fixed 1.21.1

References

Sources

SourceLicence
OSV.devCC-BY 4.0 — Go Vulnerability Database