{"id":"CVE-2023-31045","aliases":["GHSA-3862-c622-v4fp"],"url":"https://o3.security/vulnerability/CVE-2023-31045","summary":"Cross-site Scripting in Backdrop CMS","details":"A stored Cross-site scripting (XSS) issue in Text Editors and Formats in Backdrop CMS before 1.24.2 allows remote attackers to inject arbitrary web script or HTML via the name parameter. When a user is editing any content type (e.g., page, post, or card) as an admin, the stored XSS payload is executed upon selecting a malicious text formatting option. NOTE: the vendor disputes the security relevance of this finding because \"any administrator that can configure a text format could easily allow Full HTML anywhere.\"","published":"2023-04-24T00:00:00Z","modified":"2026-07-15T01:49:15.456263444Z","cvss":{"score":4.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Packagist","name":"backdrop/backdrop","fixedVersion":"1.24.2"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/backdrop/backdrop/releases/tag/1.24.2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/31xxx/CVE-2023-31045.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-31045"},{"type":"REPORT","url":"https://github.com/backdrop/backdrop-issues/issues/6065"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:15.456263444Z"}}