CVE-2024-48926

Umbraco CMS logout page displayed before session expiration

LOW
3.1
CVSS Score
Published: October 22, 2024 at 03:47 PM UTC
Updated: June 17, 2026 at 07:59 AM UTC
1 product affected across 1 vendorUmbraco-CMS

Using Umbraco-CMS by umbraco?

Get instant alerts when new vulnerabilities affect Umbraco-CMS - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
LOW3.1
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Umbraco, a free and open source .NET content management system, has an insufficient session expiration issue in versions on the 13.x branch prior to 13.5.2, 10.x prior to 10.8.7, and 8.x prior to 8.18.15. The Backoffice displays the logout page with a session timeout message before the server session has fully expired, causing users to believe they have been logged out approximately 30 seconds before they actually are. Versions 13.5.2, 10.8,7, and 8.18.15 contain a patch for the issue.

Affected

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

v < 10.8.7v < 13.5.2v < 8.18.1510.0 ≤ v < 10.8.713.0 ≤ v < 13.5.28.0 ≤ v < 8.18.15
Affected range stops below 10.8.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 13.5.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.18.15, 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:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-613

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card