CVE-2021-33512: Cross-site scripting in Plone

June 8, 2021 (updated October 21, 2024)

Plone through 5.2.4 allows stored XSS attacks (by a Contributor) by uploading an SVG or HTML document.

References

github.com/advisories/GHSA-hm2h-f456-6j88
github.com/pypa/advisory-database/tree/main/vulns/plone/PYSEC-2021-84.yaml
nvd.nist.gov/vuln/detail/CVE-2021-33512
plone.org/security/hotfix/20210518/stored-xss-from-file-upload-svg-html

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