Cyber Resilience

CVE-2024-25635

Alf ≤ 2.0-m4-2402

Public PoC
Published
19 February 2024
Modified
17 June 2026
Patch / advisory
CVSS Score v3.1 8.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0072 51th percentile
Risk Priority 65 floored blend · peak EPSS

Summary

CVE-2024-25635 is a high-severity Improper Authorization of Index Containing Sensitive Information (CWE-612) vulnerability in Alf Alf. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Data from Information Repositories (T1213); ranked in the top 49% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and AC-6 (Least Privilege) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

alf.io is an open source ticket reservation system. Prior to version 2.0-Mr-2402, organization owners can view the generated API KEY and USERS of other organization owners using the `http://192.168.26.128:8080/admin/api/users/<user_id>` endpoint, which exposes the details of the provided user ID. This…

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may also expose the API KEY in the username of the user. Version 2.0-M4-2402 fixes this issue.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1213 Data from Information Repositories Collection
Adversaries may leverage information repositories to mine valuable information.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-25634Same product: Alf Alf
CVE-2024-45299Same product: Alf Alf
CVE-2026-35482Same product: Alf Alf
CVE-2023-2259Same product: Alf Alf
CVE-2023-2258Same product: Alf Alf
CVE-2024-45300Same product: Alf Alf
CVE-2024-25627Same product: Alf Alf
CVE-2024-25628Same product: Alf Alf
CVE-2023-2260Same product: Alf Alf
CVE-2025-3660Shared CWE-612

Affected Assets

alf
alf
≤ 2.0-m4-2402

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

AC-3 directly enforces authorization checks on the search index so that only users permitted to view the original documents can access indexed content.

AC-6 limits privileges so that fewer accounts can reach the index, reducing the chance that unauthorized actors obtain sensitive indexed data.

AC-16 associates sensitivity attributes with data, enabling the index to inherit and enforce the same access restrictions as the source documents.

AC-4 enforces information-flow rules that can stop sensitive data from being reachable through an improperly authorized index.

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-05 mostly match
prevents

Directly enforces authorization policy and least privilege for access to sensitive data including indexes.

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.

prevents

Information access restriction is the technical mechanism that prevents unauthorized index queries.

prevents

Managing access rights ensures only authorized users can reach indexed sensitive content.

prevents

Privileged access rights may be used to enforce index restrictions but are not the primary control.

prevents

Classification helps identify what must be protected but does not enforce index access limits.

prevents

Access control policies directly limit who can query or view the index.

mitigates

Data leakage prevention can block unauthorized index exposure but is supplementary.

References