{"cve":"CVE-2025-57520","nvd":{"published":"2025-09-10T17:15:33.537","modified":"2026-06-17T09:43:10.303","status":"Analyzed","description":"A Cross Site Scripting (XSS) vulnerability exists in Decap CMS thru 3.8.3. Input fields such as body, tags, title, and description are not properly sanitized before being rendered in the content preview pane. This enables an attacker to inject arbitrary JavaScript which executes whenever a user views the preview panel. The vulnerability affects multiple input vectors and does not require user interaction beyond viewing the affected content.","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://github.com/decaporg/decap-cms","https://onurcangenc.com.tr/blog/decap-cms-xss-analysis","https://onurcangenc.com.tr/posts/cve-2025-57520--stored-xss-in-decap-cms-3-8-3/","https://onurcangenc.com.tr/posts/cve-2025-57520--stored-xss-in-decap-cms-3-8-3/"],"products":["techhub.p-m:decap_cms"],"source":"nvd","synced_at":"2026-10-19T22:08:41.295252406+00:00"},"epss":{"cve":"CVE-2025-57520","score":0.00334,"percentile":0.26744,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-xp8g-32qh-mv28","url":"https://osv.dev/vulnerability/GHSA-xp8g-32qh-mv28","summary":"Decap CMS Cross Site Scripting (XSS) vulnerability","modified":"2025-09-23T20:24:42Z","packages":[{"ecosystem":"npm","name":"decap-cms","purl":"pkg:npm/decap-cms","ranges":["<=3.8.3"],"fixed":[]}]}],"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."]}