Vulnerability Description
Plone CMS until version 5.2.4 has a stored Cross-Site Scripting (XSS) vulnerability in the user fullname property and the file upload functionality. The user's input data is not properly encoded when being echoed back to the user. This data can be interpreted as executable code by the browser and allows an attacker to execute JavaScript in the context of the victim's browser if the victim opens a vulnerable page containing an XSS payload.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Plone | Plone | < 5.2.4 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2021/05/22/1Mailing ListThird Party Advisory
- https://plone.org/download/releases/5.2.3Release NotesVendor Advisory
- https://plone.org/security/hotfix/20210518Vendor Advisory
- https://www.compass-security.com/fileadmin/Research/Advisories/2021-07_CSNC-2021ExploitThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/05/22/1Mailing ListThird Party Advisory
- https://plone.org/download/releases/5.2.3Release NotesVendor Advisory
- https://plone.org/security/hotfix/20210518Vendor Advisory
- https://www.compass-security.com/fileadmin/Research/Advisories/2021-07_CSNC-2021ExploitThird Party Advisory
FAQ
What is CVE-2021-3313?
CVE-2021-3313 is a vulnerability with a CVSS score of 5.4 (MEDIUM). Plone CMS until version 5.2.4 has a stored Cross-Site Scripting (XSS) vulnerability in the user fullname property and the file upload functionality. The user's input data is not properly encoded when ...
How severe is CVE-2021-3313?
CVE-2021-3313 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-3313?
Check the references section above for vendor advisories and patch information. Affected products include: Plone Plone.