{"cve":"CVE-2021-29002","nvd":{"published":"2021-03-24T15:15:12.737","modified":"2026-06-17T03:47:08.087","status":"Modified","description":"A stored cross-site scripting (XSS) vulnerability in Plone CMS 5.2.3 exists in site-controlpanel via the \"form.widgets.site_title\" parameter.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","score":5.4},"cwes":["CWE-79"],"references":["https://github.com/plone/Products.CMFPlone/issues/3255","https://www.exploit-db.com/exploits/49668","https://github.com/plone/Products.CMFPlone/issues/3255","https://www.exploit-db.com/exploits/49668"],"products":["plone:plone"],"source":"nvd","synced_at":"2026-10-19T21:15:50.279857260+00:00"},"epss":{"cve":"CVE-2021-29002","score":0.00759,"percentile":0.55283,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-38g6-x6jv-jwff","url":"https://osv.dev/vulnerability/GHSA-38g6-x6jv-jwff","summary":"Plone XSS Vulnerability","modified":"2024-12-03T06:02:07.208579Z","packages":[{"ecosystem":"PyPI","name":"plone","purl":"pkg:pypi/plone","ranges":["<=5.2.3"],"fixed":[]}]},{"id":"PYSEC-2021-889","url":"https://osv.dev/vulnerability/PYSEC-2021-889","summary":"","modified":"2024-11-25T22:42:14.202673Z","packages":[{"ecosystem":"PyPI","name":"plone","purl":"pkg:pypi/plone","ranges":["<=5.2.3"],"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."]}