CVE-2023-2142: Nunjucks autoescape bypass leads to cross site scripting
(updated )
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.
References
- bugzilla.mozilla.org/show_bug.cgi?id=1825980
- github.com/advisories/GHSA-x77j-w7wf-fjmw
- github.com/mozilla/nunjucks
- github.com/mozilla/nunjucks/commit/ec16d210e7e13f862eccdb0bc9af9f60ff6749d6
- github.com/mozilla/nunjucks/pull/1437
- github.com/mozilla/nunjucks/releases/tag/v3.2.4
- github.com/mozilla/nunjucks/security/advisories/GHSA-x77j-w7wf-fjmw
- nvd.nist.gov/vuln/detail/CVE-2023-2142
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