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CVE-2026-15227

Missing Authorization Allows Editing of Foreign Reports

MEDIUM
5.3
CVSS Score
Published: July 31, 2026 at 12:21 PM UTC
Updated: October 23, 2026 at 11:10 PM UTC
1 product affected across 1 vendorCheckmk

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Missing authorization in Checkmk <2.5.0p10, <2.4.0p35, <2.3.0p49, and 2.2.0 (EOL) allows an authenticated user lacking the "Edit foreign Reports" permission to modify reports owned by other users.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Checkmk· Checkmk
90%
2.3.0 ≤ v < 2.3.0p492.4.0 ≤ v < 2.4.0p352.5.0 ≤ v < 2.5.0p102.2.02.3.02.4.02.5.0
Affected range stops below 2.3.0p49, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.4.0p35, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.5.0p10, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://checkmk.com/werk/20003

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMCheckmk
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-862

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