Medium severity · published May 31, 2018
CVE-2016-10547
Nunjucks is a full featured templating engine for JavaScript
6.1
CVSS
1.4%
EPSS
No
On KEV
Description
Nunjucks is a full featured templating engine for JavaScript. Versions 2.4.2 and lower have a cross site scripting (XSS) vulnerability in autoescape mode. In autoescape mode, all template vars should automatically be escaped. By using an array for the keys, such as `name[]=<script>alert(1)</script>`, it is possible to bypass autoescaping and inject content into the DOM.
CVSS vector
CVSS:3.0/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)1.4% · higher than 73% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NU
Nunjucks · Mozilla
through 2.4.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-10547
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-10547
Exploit
https://github.com/matt-/nunjucks_test
Exploit
https://github.com/mozilla/nunjucks/issues/835
Exploit
https://nodesecurity.io/advisories/147
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6.1
CVE-2023-2142
In Nunjucks versions prior to version 3.2.4, it was possible to bypass the restrictions which are provided by the autoescape functionality