VulnTideExploited vulnerabilities, by vendor. Data as of .
Not in CISA KEVReported exploited: VulnCheck KEV since Published CVSS 8.8 highEPSS 30.4% probability of exploitation in 30 days
Sitecore

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

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of .

VulnCheck KEV lists it since . It cites 2 public reports, the first from .

How likely is exploitation in the next 30 days?
30.4%

EPSS score, percentile 98.2 of all scored records. A probability estimated by FIRST, not a report of exploitation.

CISA's SSVC assessment in the CVE record lists exploitation as poc.

How severe?
8.8 High

CVSS v3.1 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

Advisories and patches (1)

Which versions are affected?

Affected

  • 7.0 and earlier

Versions by product

Source: CISA KEV 2026.10.29, as of ; VulnCheck KEV, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.

Description

Sitecore PowerShell Extension RCE via Unrestricted Upload

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.

Source: CVE List, as of . About the data.

What to do

Advisories and patches

This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Versions by product, as listed in the CVE record (1 product)
Sitecore Powershell Extension
StatusVersions
Affected7.0 and earlier

Versions not listed are: unaffected.

Source: CVE List, as of . About the data.

Weakness

CWE-434
  • CWE-434: Unrestricted Upload of File with Dangerous Type

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.

Timeline

DateEvent
CVE record published
CVE record last updated

References

1

Known exploited Sitecore vulnerabilities

  • CVE-2025-53690: Sitecore Multiple Products Deserialization of Untrusted Data Vulnerability (added )
  • CVE-2019-9874: Sitecore CMS and Experience Platform (XP) Deserialization Vulnerability (added )
  • CVE-2019-9875: Sitecore CMS and Experience Platform (XP) Deserialization Vulnerability (added )
  • CVE-2021-42237: Sitecore XP Remote Command Execution Vulnerability (added )