CVE-2021-29002
MEDIUMPlone CMS 5.2.3 - Stored Cross-Site Scripting via Site Control Panel Site Title Parameter
Title source: llmExploitation Summary
EIP tracks 1 public exploit for CVE-2021-29002. PoCs published by Piyush Patil.
AI-analyzed exploit summary This exploit demonstrates a stored XSS vulnerability in Plone CMS 5.2.3 by injecting a malicious script into the 'Site title' field. The payload executes when the title is rendered in the browser.
Description
A stored cross-site scripting (XSS) vulnerability in Plone CMS 5.2.3 exists in site-controlpanel via the "form.widgets.site_title" parameter.
Exploits (1)
exploitdb
WORKING POC
by Piyush Patil · textwebappsmultiple
https://www.exploit-db.com/exploits/49668
This exploit demonstrates a stored XSS vulnerability in Plone CMS 5.2.3 by injecting a malicious script into the 'Site title' field. The payload executes when the title is rendered in the browser.
Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target:
Plone CMS 5.2.3
Auth required
Prerequisites:
Access to a Plone CMS 5.2.3 instance · Manager credentials
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026
Full analysis →
References (2)
Core 2
Core References
Exploit, Third Party Advisory, VDB Entry x_refsource_misc
https://www.exploit-db.com/exploits/49668
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/plone/Products.CMFPlone/issues/3255
Scores
CVSS v3
5.4
EPSS
0.0031
EPSS Percentile
54.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Details
CWE
CWE-79
Status
published
Products (2)
plone/plone
5.2.3
pypi/plone
0PyPI
Published
Mar 24, 2021
Tracked Since
Feb 18, 2026