CVE-2017-5966: Sitecore CRM 8.1 Rev 151207 allows remote authenticated administrators to read arbitrary files via an absolute

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MEDIUM 4.9DOWNGRADE

CVE-2017-5966 is a medium-severity flaw (CVSS 4.9) affecting crm. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Sitecore CRM 8.1 Rev 151207 allows remote authenticated administrators to read arbitrary files via an absolute path traversal attack on sitecore/shell/download.aspx with the file parameter.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.9 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-22
Published	2017-05-23
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: sitecore

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

Am I affected?

Timeline

2017-05-23 05:29 UTCPublished CVE record published
2026-06-17 01:21 UTCUpdated Record last modified

sitecore crm DOWNGRADE

Affected: 8.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.1

1. Check installed version

apt-cache policy crm || rpm -q crm || crm --version

2. No fixed release: DOWNGRADE to a release before 8.1 (Debian / Ubuntu)

apt-cache madison crm sudo apt install crm=<VERSION_BEFORE_8.1> sudo apt-mark hold crm

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list crm sudo dnf downgrade crm-<VERSION_BEFORE_8.1> sudo dnf versionlock add crm

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.

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-2017-5966?

crm: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-5966 being exploited?

CVE-2017-5966 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-2017-5966 affect?

CVE-2017-5966 affects crm. Severity is medium (CVSS 4.9). Sitecore CRM 8.1 Rev 151207 allows remote authenticated administrators to read arbitrary files via an absolute path traversal attack on sitecore/shell/download.aspx with the file parameter.

How urgent is CVE-2017-5966?

Priority 41/100. Public exploit reference

Related CVEs

CVE-2019-15950 MEDIUM 6.1 UPGRADE The CRM Plugin before 4.2.4 for Redmine allows XSS via crafted vCard data.
CVE-2017-5965 MEDIUM 6.7 DOWNGRADE The package manager in Sitecore CRM 8.1 Rev 151207 allows remote authenticated administrators to execute arbit

References

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