Improper access control in the notification management endpoints in Devolutions Server allows an...

Description

Improper access control in the notification management endpoints in Devolutions Server allows an unauthenticated attacker to modify or delete arbitrary user notification records via missing session validation.

This issue affects the following versions :

Devolutions Server 2026.1.6.0 through 2026.1.15.0

Devolutions Server 2025.3.19.0 and earlier

Basic information

Type
unreviewed
Severity
medium
Advisory on GitHub
Open advisory ↗
Repository advisory
Source code
Not specified
Published (advisory)
2026-05-12 18:30:47 UTC
Updated
2026-05-13 18:31:52 UTC
NVD published
2026-05-12

EPSS Score

Score Percentile
0.02% 5.37%

CVSS Scores

Base score Version Severity Vector
4.3 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.

Identifiers

CWEs

CWE id Name
CWE-862 Missing Authorization

References

cvelogic Threat Intelligence