High severity · published Jun 17, 2025
CVE-2025-34511
Sitecore PowerShell Extension RCE via Unrestricted Upload
8.8
CVSS
30.4%
EPSS
No
On KEV
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
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)30.4% · higher than 98% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PE
Powershell Extension · Sitecore
through 7.0 · source: vendor
EC
Experience Commerce · Sitecore
9.0 through 10.4 · source: NVD
EM
Experience Manager · Sitecore
9.0 through 10.4 · source: NVD
EP
Experience Platform · Sitecore
9.0 before 10.4; 10.4 · source: NVD
MC
Managed Cloud · Sitecore
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-34511
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-34511
Exploit
https://labs.watchtowr.com/is-b-for-backdoor-pre-auth-rce-chain-in-sitecore-experience-platform/
Vendor Advisory
https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1003667