CVE-2023-39318
Improper handling of HTML-like comments in script contexts in html/template
6.1
MEDIUM
CVSS 3.1
EPSS 0.09%
Description
The html/template package does not properly handle HTML-like "" comment tokens, nor hashbang "#!" comment tokens, in <script> contexts. This may cause the template parser to improperly interpret the contents of <script> contexts, causing actions to be improperly escaped. This may be leveraged to perform an XSS attack.
How to fix CVE-2023-39318
To remediate CVE-2023-39318, upgrade the affected package to a fixed version below.
- —upgrade to 1.20.8 or later
- —no fix listed
- —no fix listed
- —upgrade to 1.20.8 or later
Is CVE-2023-39318 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 1.20.8, >= 1.21.0, < 1.21.1
- from 0
- from 0
- from 0, < 1.20.8, >= 1.21.0-0, < 1.21.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |