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

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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.

Published: 2025-06-17 Last update: 2025-09-08 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-34511 is rated High Exploit Risk (86.1/100): CVSS High severity, with high exploitation likelihood (EPSS 85.78%, 99th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.16% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2025-34511

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2025-34511

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-25 84.61% 85.78% +1.16%
2 2026-04-13 78.65% 84.61% +5.96%
3 2026-03-26 — 78.65% —

Full EPSS history (29 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-34511

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]

Weakness enumeration for CVE-2025-34511

Affected software / configurations for CVE-2025-34511

Vendor Product Version Raw CPE
sitecore experience_commerce >= 9.0, <= 10.4 cpe:2.3:a:sitecore:experience_commerce:*:*:*:*:*:*:*:*
sitecore experience_manager >= 9.0, <= 10.4 cpe:2.3:a:sitecore:experience_manager:*:*:*:*:*:*:*:*
sitecore experience_platform >= 9.0, < 10.4 cpe:2.3:a:sitecore:experience_platform:*:*:*:*:*:*:*:*
sitecore experience_platform 10.4 cpe:2.3:a:sitecore:experience_platform:10.4:-:*:*:*:*:*:*
sitecore managed_cloud — cpe:2.3:a:sitecore:managed_cloud:-:*:*:*:*:*:*:*

References for CVE-2025-34511

cvelogic Threat Intelligence