VDB
Sign up
MEDIUM6.1

GO-2023-2043

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

Quick fix

GO-2023-2043 — stdlib: upgrade to the fixed version with the command below.

go get stdlib@v1.20.8

Details

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.

Are you affected?

Enter the version of the package you're using.

Affected packages

Go/stdlib
Introduced in: 0Fixed in: 1.20.8
Fixgo get stdlib@v1.20.8

References