Medium severity · published Sep 8, 2023
CVE-2023-39318
The html/template package does not properly handle HTML-like "" comment tokens, nor hashbang "#!" comment tokens, in <script> contexts
6.1
CVSS
0.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GO
GO · Golang
before 1.20.8; 1.21.0 before 1.21.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-39318
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-39318
Patch
https://go.dev/cl/526156
Issue Tracking
https://go.dev/issue/62196
Mailing List
https://groups.google.com/g/golang-dev/c/2C5vbR-UNkI/m/L1hdrPhfBAAJ
Vendor Advisory
https://pkg.go.dev/vuln/GO-2023-2041
security.gentoo.org
https://security.gentoo.org/glsa/202311-09
Third Party Advisory
https://security.netapp.com/advisory/ntap-20231020-0009/
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