{"action":"Upgrade plone-supermodel to 1.6.3 or later.","affected":[{"fixed":"1.6.3","introduced":"0"}],"component":"plone-supermodel","cve_ids":["CVE-2020-28734"],"ecosystem":"PyPI","epss":0.01453,"exploited":false,"fixed_versions":["1.6.3"],"ghsa_id":"GHSA-wq6x-g685-w5f2","id":"tcs_01M5KHD7DE1XWD81M9ZWG102KS","modified_at":"2026-07-13T16:43:11.751432633Z","published_at":"2026-07-02T14:13:09.907843Z","references":["https://osv.dev/vulnerability/PYSEC-2026-736","https://nvd.nist.gov/vuln/detail/CVE-2020-28734","https://github.com/plone/Products.CMFPlone/issues/3209","https://dist.plone.org/release/5.2.3/RELEASE-NOTES.txt","https://github.com/advisories/GHSA-wq6x-g685-w5f2","https://github.com/pypa/advisory-database/tree/main/vulns/plone/PYSEC-2020-246.yaml","https://www.misakikata.com/codes/plone/python-en.html","https://pypi.org/project/plone-supermodel"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"PYSEC-2026-736","url":"https://osv.dev/vulnerability/PYSEC-2026-736"}],"summary":"Improper Restriction of XML External Entity Reference in Plone"}