CVE-2021-3313
Medium
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.
SeverityMedium
CVSS5.4
Exploit probability—
Product
Plone
PublishedMay 20, 2021
First seenMay 20, 2021
How to fix
Update
- plone plone5.2.4 or later
- plone5.2.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| plone plone | v < 5.2.4 | 5.2.4 |
| plonePyPI | v < 5.2.4 | 5.2.4 |
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