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CVE-2025-34511

Sitecore PowerShell Extension RCE via Unrestricted Upload

Published: Jun 17, 2025Updated: Sep 8, 2025 Sources: CVE List NVD BDUCWE-434
NVD MITRE
8.8CVSSHIGH
EPSS Score
8.5%
Top 5.7%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

Sitecore PowerShell Extensions, an add-on to Sitecore Experience Manager (XM) and Experience Platform (XP), through version 7.0 is vulnerable to an unrestricted file upload issue. A remote, authenticated attacker can upload arbitrary files to the server using crafted HTTP requests, resulting in remote code execution.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-434

Affected Products

Powershell ExtensionSitecore
SaaS
Web & CMS Plugins / cms-core
experience commercesitecore
SaaS
Web & CMS Plugins / cms-core
experience managersitecore
SaaS
Web & CMS Plugins / cms-core
experience platformsitecore
On-prem
Web & CMS Plugins / cms-core
managed cloudsitecore
SaaS
Web & CMS Plugins / cms-core
sitecorecommercialWeb & CMS Pluginsaka experience platform, experience manager, sitecore managed cloud
and 1 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

3 techniques
Command and Control
Initial Access
Persistence
View detailed technique mapping

References

https://labs.watchtowr.com/is-b-for-backdoor-pre-auth-rce-chain-in-sitecore-experience-platform/
labs.watchtowr.com
https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1003667
support.sitecore.com
https://www.kaspersky.ru/blog/vulnerabilities-sitecore-experience-platform/39950/
kaspersky.ru

Timeline

Published
Jun 17, 2025
Last Updated
Sep 8, 2025

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