CVE-2025-34511HIGH 8.8EPSS p95.2%

CVE-2025-34511CVE-2025-34511

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.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS10.24% probability of exploitation · percentile 95.2% · 2026-08-03T12:00:16Z
Published2025-06-17
Last modified2025-09-08

Underlying weaknesses· 1

CWE-434

References

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

1

TypeTargetConfidenceTier
WeaknessUnrestricted Upload of File with Dangerous Typecwe-4340%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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CVE-2025-34510
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CVE-2025-54757
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Sitecore XP Remote Command Execution Vulnerability
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CVE-2025-53691
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CVE-2025-7063
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Sitecore CMS and Experience Platform (XP) Deserialization Vulnerability
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.