Staging Environment: Content and features may be unstable or change without notice.
Advisory details: pypa / plone/PYSEC-2021-78
Advisory ID pypa/plone/PYSEC-2021-78
Aliases CVE-2021-3313
GHSA-hprr-4vfq-fcxw
PYSEC-2021-78
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.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (0)
There are no known CWE.
System Score Found at
There are no known severity scores.
Reference id Reference type URL
https://plone.org/download/releases/5.2.3
https://plone.org/security/hotfix/20210518
https://www.compass-security.com/fileadmin/Research/Advisories/2021-07_CSNC-2021-013_XSS_in_Plone_CMS.txt
http://www.openwall.com/lists/oss-security/2021/05/22/1
GHSA-hprr-4vfq-fcxw https://github.com/advisories/GHSA-hprr-4vfq-fcxw
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
There are no known vectors.

There are no SSVC decisions available.