{"cve":"CVE-2021-32561","nvd":{"published":"2021-05-11T14:15:07.390","modified":"2026-06-17T03:53:10.803","status":"Modified","description":"OctoPrint before 1.6.0 allows XSS because API error messages include the values of input parameters.","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/OctoPrint/OctoPrint/releases/tag/1.6.0","https://octoprint.org/blog/2021/04/27/new-release-1.6.0/","https://www.brzozowski.io/web-applications/2021/05/11/the-insecure-story-of-octoprint.html","https://github.com/OctoPrint/OctoPrint/releases/tag/1.6.0","https://octoprint.org/blog/2021/04/27/new-release-1.6.0/"],"products":["octoprint:octoprint"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2021-32561","score":0.01152,"percentile":0.66967,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-vcx4-fpmp-mvv6","url":"https://osv.dev/vulnerability/GHSA-vcx4-fpmp-mvv6","summary":"OctoPrint API Error Messages vulnerable to XSS","modified":"2024-10-08T12:58:05.513021Z","packages":[{"ecosystem":"PyPI","name":"octoprint","purl":"pkg:pypi/octoprint","ranges":["<1.6.0"],"fixed":["1.6.0"]}]},{"id":"PYSEC-2021-30","url":"https://osv.dev/vulnerability/PYSEC-2021-30","summary":"","modified":"2026-06-10T17:02:27.253406900Z","packages":[{"ecosystem":"PyPI","name":"octoprint","purl":"pkg:pypi/octoprint","ranges":["<1.6.0"],"fixed":["1.6.0"]}]}],"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."]}