Dashboard / CVE-2026-7765

CVE-2026-7765

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 73/100
Published: 2026-06-08 Modified: 2026-10-23 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: X
AT: Present
VC: Low
VI: None
VA: None

Description

Incorrect authorization in the User Messages dashboard widget in Checkmk <2.5.0p5 causes the message-fetching endpoints to return the dashboard creator's messages rather than the viewer's, allowing an attacker who knows a valid public dashboard share token to read the issuer's personal messages by sending requests to the underlying endpoint, even without a User Messages widget present.

Weakness Classification (1)

Affected Software (8)

VendorProductVersion
checkmk checkmk 2.5.0
checkmk checkmk 2.5.0
checkmk checkmk 2.5.0
checkmk checkmk 2.5.0
checkmk checkmk 2.5.0
checkmk checkmk 2.5.0
checkmk checkmk 2.5.0
checkmk checkmk 2.5.0

References & Advisories (1)

Bug Bounty Relevance

73 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.19%
Raw Score 0.001870
Percentile 8.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00187
2026-10-28
0.00187

Intelligence Sources

nvd ref →

External Links