Arbitrary file upload in Sitecore Experience Commerce
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.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.298 (98.2th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.298 · newest: 0.298 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- labs.watchtowr.com/is-b-for-backdoor-pre-auth-rce-chain-in-sitecore-experience-… (Exploit, technical-description, Third Party Advisory, exploit, third-party-advisory)
- support.sitecore.com/kb (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-34511?
- CVE-2025-34511 is a high-severity vulnerability in Sitecore Experience Commerce, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2025-06-17.
- How severe is CVE-2025-34511?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2025-34511 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.