CVE-2021-33512: XSS
First published: Fri May 21 2021(Updated: )
Plone through 5.2.4 allows stored XSS attacks (by a Contributor) by uploading an SVG or HTML document.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Plone Plone | <=5.2.4 | |
| pip/Plone | <=5.2.4 | |
| <=5.2.4 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2021/05/22/1
- https://plone.org/security/hotfix/20210518/stored-xss-from-file-upload-svg-html
- https://nvd.nist.gov/vuln/detail/CVE-2021-33512
- https://github.com/advisories/GHSA-hm2h-f456-6j88 (Advisory)
- https://github.com/pypa/advisory-database/tree/main/vulns/plone/PYSEC-2021-84.yaml
Frequently Asked Questions
What is CVE-2021-33512?
CVE-2021-33512 is a vulnerability in Plone through version 5.2.4 that allows stored XSS attacks by a Contributor through uploading an SVG or HTML document.
What is the severity of CVE-2021-33512?
The severity of CVE-2021-33512 is medium with a CVSS score of 5.4.
How can I exploit CVE-2021-33512?
To exploit CVE-2021-33512, you can upload a malicious SVG or HTML document as a Contributor in Plone.
Is there a fix available for CVE-2021-33512?
Yes, a hotfix is available for CVE-2021-33512. You can find more information about the hotfix at the following link: https://plone.org/security/hotfix/20210518/stored-xss-from-file-upload-svg-html
Where can I find more information about CVE-2021-33512?
You can find more information about CVE-2021-33512 at the following link: http://www.openwall.com/lists/oss-security/2021/05/22/1
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