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CVE-2025-34511: Sitecore PowerShell Extensions, an add-on to Sitecore Experience Manager (XM) and Experience Platform (XP), th

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HIGH 8.8UPGRADEUPGRADEUPGRADE

CVE-2025-34511 is a high-severity flaw (CVSS 8.8) affecting experience commerce, experience manager, experience platform. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

  • High severity
  • EPSS top 2%: very likely to be exploited
  • Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score8.8 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance30.4% (top 2%)
CISA exploited listNo
WeaknessCWE-434
Published2025-06-17
Last modified2026-06-17
Publisher (CNA): VulnCheck · Vendor: sitecore

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

sitecore experience commerce UPGRADE
Affected: >= 9.0 and <= 10.4
Fixed in: newer than 10.4
Safe to downgrade to: a release before 9.0
1. Check installed version
apt-cache policy experience-commerce || rpm -q experience-commerce || experience-commerce --version
2. UPGRADE to newer than 10.4 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade experience-commerce
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade experience-commerce
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 9.0 (Debian / Ubuntu)
apt-cache madison experience-commerce sudo apt install experience-commerce=<VERSION_BEFORE_9.0> sudo apt-mark hold experience-commerce
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list experience-commerce sudo dnf downgrade experience-commerce-<VERSION_BEFORE_9.0> sudo dnf versionlock add experience-commerce
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
sitecore experience manager UPGRADE
Affected: >= 9.0 and <= 10.4
Fixed in: newer than 10.4
Safe to downgrade to: a release before 9.0
1. Check installed version
apt-cache policy experience-manager || rpm -q experience-manager || experience-manager --version
2. UPGRADE to newer than 10.4 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade experience-manager
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade experience-manager
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 9.0 (Debian / Ubuntu)
apt-cache madison experience-manager sudo apt install experience-manager=<VERSION_BEFORE_9.0> sudo apt-mark hold experience-manager
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list experience-manager sudo dnf downgrade experience-manager-<VERSION_BEFORE_9.0> sudo dnf versionlock add experience-manager
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
sitecore experience platform UPGRADE
Affected: >= 9.0 and < 10.4 · 10.4
Fixed in: 10.4
Safe to downgrade to: a release before 9.0
1. Check installed version
apt-cache policy experience-platform || rpm -q experience-platform || experience-platform --version
2. UPGRADE to 10.4 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade experience-platform
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade experience-platform
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 9.0 (Debian / Ubuntu)
apt-cache madison experience-platform sudo apt install experience-platform=<VERSION_BEFORE_9.0> sudo apt-mark hold experience-platform
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list experience-platform sudo dnf downgrade experience-platform-<VERSION_BEFORE_9.0> sudo dnf versionlock add experience-platform
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
sitecore managed cloud MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy managed-cloud || rpm -q managed-cloud || managed-cloud --version
No fixed or unaffected release known
Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-34511?

experience commerce: upgrade to newer than 10.4; experience manager: upgrade to newer than 10.4; experience platform: upgrade to 10.4. Exact commands for each OS are on this page.

Is CVE-2025-34511 being exploited?

CVE-2025-34511 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-34511 affect?

CVE-2025-34511 affects experience commerce, experience manager, experience platform. Severity is high (CVSS 8.8). 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

How urgent is CVE-2025-34511?

Priority 60/100. High severity; EPSS top 2%: very likely to be exploited; Public exploit reference

Software pages

PowerShell vulnerabilities

Related CVEs

References

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