CVE-2025-15553
Truesec Lapswebui ≤ 2.4
Raw vector
CVSS: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:XSummary
CVE-2025-15553 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-2025-15553 affects Truesec’s LAPSWebUI in versions prior to 2.4, where the logout functionality fails to operate correctly. This vulnerability, tracked under CWE-613 (Insufficient Session Expiration), enables privilege escalation by disclosing local administrator passwords. It carries a CVSS v3.1 base score of 7.1, reflecting local vector access (AV:L), low attack complexity (AC:L), low privileges required (PR:L), no user interaction (UI:N), unchanged scope (S:U), high confidentiality and integrity impacts (C:H/I:H), and no availability impact (A:N). The issue was published on 2026-03-16.
An attacker with physical or logical access to an affected workstation and possessing low-level privileges can exploit the broken logout mechanism. By leveraging this flaw with low complexity and no need for user interaction, the attacker can disclose the local admin password, enabling privilege escalation on the system.
The advisory from Reversec Labs at https://labs.reversec.com/advisories/2026/03/insecure-logout-functionality-in-truesec-lapswebui provides details on the vulnerability. Mitigation requires upgrading to LAPSWebUI version 2.4 or later, which addresses the logout functionality issue.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-208693
Vulnerability Data
Non-working logout functionality 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)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
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.
Credential lifecycle management directly includes enforcing session expiration to prevent reuse.
Authorization policy enforcement and review covers terminating stale sessions to limit access scope.
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.
Automatic termination of inactive sessions and limits on connection duration shrink the window during which a hijacked or unattended authenticated session can be exploited.