CVE-2025-34511

Sitecore PowerShell Extension RCE via Unrestricted Upload

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.

Affected

Sitecore · Powershell Extension

CVSS v3.1 VULNCHECK

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

29.81% chance of exploitation in the next 30 days, 98th percentile

Published

2025-06-17

Updated

2026-02-26

Proof-of-concept exploits (1)

• https://labs.watchtowr.com/is-b-for-backdoor-pre-auth-rce-chain-in-sitecore-experience-pl…

Metasploit modules (1)

• rapid7/metasploit-framework/blob/master/modules/exploits/windows/http/sitecore_xp_cve_202…

Security advisories

• https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1003667
• https://labs.watchtowr.com/is-b-for-backdoor-pre-auth-rce-chain-in-sitecore-experience-pl…

References

• CVE Record
• NVD entry