Cyber Resilience

CVE-2025-15552

Truesec Lapswebui ≤ 2.4

Published
16 March 2026
Modified
20 April 2026
CVSS Score v4 6.0
Click a component to see what it means
Raw vectorCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H/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 Score 0.0011 1th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2025-15552 is a medium-severity Insufficient Session Expiration (CWE-613) vulnerability in Truesec Lapswebui. Its CVSS base score is 6.0 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Browser Session Hijacking (T1185); ranked at the 1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-12 (Session Termination) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2025-15552 is an Insufficient Session Expiration vulnerability (CWE-613) in Truesec’s LAPSWebUI prior to version 2.4. Published on 2026-03-16T14:17:56.130, it carries a CVSS v3.1 base score of 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). The flaw stems from sessions that do not expire properly, enabling unauthorized access to sensitive credentials within the LAPS (Local Administrator Password Solution) web interface.

A local attacker with access to an affected workstation and low privileges can exploit this vulnerability with low attack complexity and no user interaction. Exploitation allows disclosure of the local administrator password, resulting in privilege escalation and high impacts on confidentiality, integrity, and availability.

The advisory at https://labs.reversec.com/advisories/2026/03/long-session-lifetime-in-truesec-lapswebui provides details on the issue, with mitigation achieved by upgrading to LAPSWebUI version 2.4 or later.

OWASP Top 10 for Web (2025)

A07:2025 Authentication Failures

EU & UK References

Vulnerability Data

Insufficient Session Expiration in Truesec’s LAPSWebUI before version 2.4 allows an attacker with access to a workstation to escalate their privileges via disclosure of local admin password.

CWE(s)
CWE-613

Related Threats

MITRE ATT&CK Enterprise Techniques

T1185 Browser Session Hijacking Collection
Adversaries may take advantage of security vulnerabilities and inherent functionality in browser software to change content, modify user-behaviors, and intercept information as part of various browser session hijacking techniques.
attack.mitre.org →
T1550 Use Alternate Authentication Material Lateral Movement
Adversaries may use alternate authentication material, such as password hashes, Kerberos tickets, and application access tokens, in order to move laterally within an environment and bypass normal system access controls.
attack.mitre.org →
T1550.004 Web Session Cookie Lateral Movement
Adversaries can use stolen session cookies to authenticate to web applications and services.
attack.mitre.org →
T1563 Remote Service Session Hijacking Lateral Movement
Adversaries may take control of preexisting sessions with remote services to move laterally in an environment.
attack.mitre.org →
T1539 Steal Web Session Cookie Credential Access
An adversary may steal web application or service session cookies and use them to gain access to web applications or Internet services as an authenticated user without needing credentials.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-15553Same product: Truesec Lapswebui
CVE-2025-15554Same product: Truesec Lapswebui
CVE-2025-46344Shared CWE-613
CVE-2025-53896Shared CWE-613
CVE-2023-5889Shared CWE-613
CVE-2025-24896Shared CWE-613
CVE-2026-27647Shared CWE-613
CVE-2026-26342Shared CWE-613
CVE-2024-29070Shared CWE-613
CVE-2026-40934Shared CWE-613

Affected Assets

truesec
lapswebui
≤ 2.4

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

AC-12 Session Termination good match

AC-12 directly requires automatic session termination after a defined period, structurally preventing reuse of expired session identifiers.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-01 mostly match
prevents

Credential lifecycle management directly includes enforcing session expiration to prevent reuse.

PR.AA-05 mostly match
prevents

Authorization policy enforcement and review covers terminating stale sessions to limit access scope.

PR.AA-03 partial match
prevents

Authentication mechanisms can incorporate session timeout checks but do not inherently address expiration policy.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.5 Secure authentication none match
none

Automatic termination of inactive sessions and limits on connection duration shrink the window during which a hijacked or unattended authenticated session can be exploited.

References