{"id":"CVE-2022-23647","aliases":["GHSA-3949-f494-cm99"],"url":"https://o3.security/vulnerability/CVE-2022-23647","summary":"Cross-site Scripting in Prism","details":"Prism is a syntax highlighting library. Starting with version 1.14.0 and prior to version 1.27.0, Prism's command line plugin can be used by attackers to achieve a cross-site scripting attack. The command line plugin did not properly escape its output, leading to the input text being inserted into the DOM as HTML code. Server-side usage of Prism is not impacted. Websites that do not use the Command Line plugin are also not impacted. This bug has been fixed in v1.27.0. As a workaround, do not use the command line plugin on untrusted inputs, or sanitize all code blocks (remove all HTML code text) from all code blocks that use the command line plugin.","published":"2022-02-18T14:50:10Z","modified":"2026-08-12T03:51:26.595694704Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"prismjs","fixedVersion":"1.27.0"}],"fix":{"url":"https://github.com/PrismJS/prism/commit/e002e78c343154e1c0ddf9d6a0bb85689e1a5c7c","label":"PrismJS/prism@e002e78"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/23xxx/CVE-2022-23647.json"},{"type":"ADVISORY","url":"https://github.com/PrismJS/prism/security/advisories/GHSA-3949-f494-cm99"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-23647"},{"type":"FIX","url":"https://github.com/PrismJS/prism/commit/e002e78c343154e1c0ddf9d6a0bb85689e1a5c7c"},{"type":"FIX","url":"https://github.com/PrismJS/prism/pull/3341"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:26.595694704Z"}}