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CVE-2026-123973

5.0 mediumEPSS 0.1%

Medium (5.0) in sharepoint products. EPSS 0.1% estimated probability of exploitation activity in the next 30 days.

On this page
SharePoint Products CopyMove before 2026-11-06 allows traversal. An authenticated SharePoint user with the necessary permissions to use the ZIP import functionality may exploit a path traversal vulnerability in CopyMove for SharePoint 2019 and CopyMove for SharePoint V6 by supplying a crafted ZIP archive. A path traversal vulnerability in the ZIP import functionality of SharePoint Products ApS CopyMove for SharePoint 2019 and CopyMove for SharePoint V6 allows a user with access to the ZIP import functionality to supply a crafted ZIP archive containing malicious entry paths. During extraction, these paths may cause files to be written outside the intended extraction directory. The issue has been addressed by implementing ZIP archive entry path validation to prevent extraction outside the designated directory.

Severity

CVSS 3.1

5.0 medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
EPSS
0.1% estimated probability of exploitation activity in the next 30 days; 2nd percentile. Scored 2026-11-10. A forecast for this CVE across the internet, not for your own systems.
CISA's assessment (SSVC)
Exploitation: none · Automatable: no · Technical impact: partial, assessed 2026-11-09. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
CWE
CWE-23 Relative Path Traversal
OWASP Top 10
A01:2025 Broken Access Control
Published
Modified
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Show the promptExplain CVE-2026-123973 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-123973?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-123973?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-123973 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.

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Affected

  • sharepoint products:copymove for sharepoint 2019
  • sharepoint products:copymove for sharepoint v6

Versions

From the CNA's record in the CVE List.

ProductAffected
SharePoint Products CopyMove for SharePoint V6from 6.0.0.0 before 6.3.1.2094
SharePoint Products CopyMove for SharePoint 2019from 5.0.0.0 before 5.2.1.2095

Attack patterns (CAPEC)

  • CAPEC-76 Manipulating Web Input to File System Calls Likelihood: High · Severity: Very High
  • CAPEC-139 Relative Path Traversal Likelihood: High · Severity: High

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

References

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