Vulnerability · Published Jun 17, 2025 · Assigned by VulnCheck

CVE-2025-34511Sitecore PowerShell Extension RCE via Unrestricted Upload

High 8.8

In plain English

A high-severity unrestricted file upload in Powershell Extension from Sitecore. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 30.4% (higher than 98% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit.

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)30.4%top 1.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack tooling1Metasploit

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Sitecore	Powershell Extension	0 – through 7.0

Weakness: CWE-434 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

https://labs.watchtowr.com/is-b-for-backdoor-pre-auth-rce-chain-in-sitecore-experience-platform/ third-party-advisory, exploit, technical-description
https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1003667 vendor-advisory