CVE-2026-115931 Postiz - Broken Access Control

Postiz contains a broken access control vulnerability caused by unrestricted function calls on connected channels, letting signed-in users read arbitrary files or cause backend process exit, exploit requires user registration.

CVSS base score 9.9 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.65% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Information Disclosure, Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Published
23 October 2026
Updated
25 October 2026
Weakness
CWE-73

Vendor fix

Restrict accessible backend functions and validate user inputs; update to latest version with access control fixes.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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