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Back to active CVEs
High · CVSS 8.8CVE-2025-34511

Sitecore PowerShell Extension RCE via Unrestricted UploadCVE-2025-34511

Answer in brief

CVE-2025-34511 records a High severity (CVSS 8.8) vulnerability in Sitecore PowerShell Extension RCE via Unrestricted Upload. The current sources do not mark it as known exploited. The current feed maps Sitecore/Powershell Extension (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jun 17, 2025Updated Nov 3, 2026Source checked Nov 3, 2026First seen by HOL Nov 3, 2026Material review Nov 3, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.8
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Sitecore/Powershell Extension (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Sitecore/Powershell Extensiongeneric>=0 <=7.0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Sitecore/Powershell Extension.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Jun 17, 2025

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 3, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 3, 2026

Sources and claim methodology

  • Source referencelabs.watchtowr.com
  • Source referencesupport.sitecore.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Bagisto before 2.4.5 Stored XSS via RMA Conversation Attachment UploadAlso CWE-434

Record context

Vulnerability class
Arbitrary File Read
EPSS
Not reported
CWE IDs
CWE-434
Source
CVE List V5
Source checked
Nov 3, 2026
References
2 linked sources
Open source record