{"cve":"CVE-2023-2142","nvd":{"published":"2024-11-26T12:15:18.307","modified":"2026-06-17T05:51:35.577","status":"Analyzed","description":"In Nunjucks versions prior to version 3.2.4, it was \npossible to bypass the restrictions which are provided by the autoescape\n functionality. If there are two user-controlled parameters on the same \nline used in the views, it was possible to inject cross site scripting \npayloads using the backslash \\ character.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-79"],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=1825980","https://github.com/mozilla/nunjucks/security/advisories/GHSA-x77j-w7wf-fjmw"],"products":["mozilla:nunjucks"],"source":"nvd","synced_at":"2026-10-19T21:57:34.731061660+00:00"},"epss":{"cve":"CVE-2023-2142","score":0.00364,"percentile":0.30235,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-x77j-w7wf-fjmw","url":"https://osv.dev/vulnerability/GHSA-x77j-w7wf-fjmw","summary":"Nunjucks autoescape bypass leads to cross site scripting","modified":"2024-11-26T18:54:25Z","packages":[{"ecosystem":"npm","name":"nunjucks","purl":"pkg:npm/nunjucks","ranges":["<3.2.4"],"fixed":["3.2.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}