Vulnerability Monitor

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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. If there are two user-controlled parameters on the same line used in the views, it was possible to inject cross site scripting payloads using the backslash \ character.

Published

2024-11-26T12:15:18.307

Last Modified

2025-06-24T16:42:52.533

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 6.1 (MEDIUM)

Weaknesses

Type: Secondary
CWE-79

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mozilla	nunjucks	< 3.2.4	Yes

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1825980 Issue Tracking, Permissions Required ([email protected])
https://github.com/mozilla/nunjucks/security/advisories/GHSA-x77j-w7wf-fjmw Vendor Advisory ([email protected])