| id: GO-2023-1751 |
| modules: |
| - module: std |
| versions: |
| - fixed: 1.19.9 |
| - introduced: 1.20.0-0 |
| - fixed: 1.20.4 |
| vulnerable_at: 1.20.3 |
| packages: |
| - package: html/template |
| symbols: |
| - cssValueFilter |
| - escaper.commit |
| derived_symbols: |
| - Template.Execute |
| - Template.ExecuteTemplate |
| summary: 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. |
| credits: |
| - Juho Nurminen of Mattermost |
| references: |
| - report: https://go.dev/issue/59720 |
| - fix: https://go.dev/cl/491615 |
| - web: https://groups.google.com/g/golang-announce/c/MEb0UyuSMsU |
| cve_metadata: |
| id: CVE-2023-24539 |
| cwe: 'CWE-74: Improper input validation' |
| review_status: REVIEWED |
