CVE-2025-34511: managed cloud File Upload RCE — Exploit

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.

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CVSS v3.1 Score

8.8

HIGH

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

Weakness Type (CWE)

CWE-434 Unrestricted Upload

Affected Products

Vendor	Product	Versions
sitecore	experience_commerce	9.0 — 10.4
sitecore	experience_manager	9.0 — 10.4
sitecore	experience_platform	9.0 — 10.4
sitecore	experience_platform	All
sitecore	managed_cloud	All

References

Advisories & Patches

https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1003667

Exploits

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

Frequently Asked Questions

What is CVE-2025-34511? +

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. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-34511? +

CVE-2025-34511 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-34511? +

CVE-2025-34511 affects products from sitecore, specifically: experience_commerce, experience_manager, experience_platform, managed_cloud. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-34511? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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