GO-2023-2043

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Source

https://pkg.go.dev/vuln/GO-2023-2043

Import Source

https://vuln.go.dev/ID/GO-2023-2043.json

JSON Data

https://api.osv.dev/v1/vulns/GO-2023-2043

Aliases

Published

2023-09-07T16:11:59Z

Modified

2024-09-11T06:13:41.182271Z

Summary

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

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.

References

Credits

- Takeshi Kaneko (GMO Cybersecurity by Ierae, Inc.)

Affected packages

Go / stdlib

Package

Name: stdlib; View open source insights on deps.dev
Purl: pkg:golang/stdlib

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.20.8

Introduced

1.21.0-0

Fixed

1.21.1

Ecosystem specific

{
    "imports": [
        {
            "path": "html/template",
            "symbols": [
                "Template.Execute",
                "Template.ExecuteTemplate",
                "escaper.escapeText",
                "indexTagEnd",
                "tSpecialTagEnd"
            ]
        }
    ]
}