cvedb.io
CVE-2021-3313
MEDIUM · CVSS 5.4
EPSS exploitation probability: 0%
Published 2021-05-20T16:15:08.283 · Last modified 2026-06-17T04:04:55.457

Summary

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.

Affected products

plone — plone

Does this affect you?

Add your gear to cvedb and we'll alert you only when plone ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.