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Alo Suite EUVDEUVD-2026-115795

| CVE-2026-108046 MEDIUM
Authorization Bypass Through User-Controlled Key (CWE-639)
2026-11-03 INCIBE GHSA-fvq5-h5xm-rp92
6.9
CVSS 4.0 · Vendor: INCIBE
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Reach /Companies/Edit/{id} endpoint unauthenticated
  2. Delivery
    Enumerate sequential object identifiers
  3. Exploit
    Bypass missing authorization check
  4. Execution
    Retrieve other companies'/users' data
  5. Impact
    Unauthorized disclosure of application data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Object-level authorization, IDOR prevention
Exploitation Conditions

No special conditions - remote unauthenticated exploitation against the /Companies/Edit/{id} endpoint of AM Systems Alo Suite; the attacker only needs to modify the object identifier in the request (PR:N/UI:N/AC:L). The practical limits are scope and impact rather than access: the flaw yields read-only unauthorized disclosure (VI:N/VA:N), its value depends on identifiers being enumerable/predictable, and it requires network reachability to the application. No authentication, user interaction, or non-default configuration is indicated by the available sources.

Impact

This is a moderate-severity information-disclosure flaw (CWE-639, IDOR) whose signals are internally consistent but point to a measured rather than urgent priority. The input CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N) scores 6.9 and indicates network-reachable, low-complexity, unauthenticated access (PR:N) with only low confidentiality impact and no integrity or availability impact - matching the description, which states unauthenticated remote attackers can enumerate identifiers at /Companies/Edit/{id} and read other companies' or users' data. No EPSS score was supplied, so exploitation probability cannot be quantified. The CVE is not listed in CISA KEV and no public exploit is referenced (the only reference is the INCIBE vendor advisory), so there is no public exploit identified at time of analysis. The vuln.today decision label is 'this_month', not act_now or emergency, aligning with a real-but-non-critical issue: trivially exploitable in principle (no auth, no interaction) but bounded to read-only disclosure of limited data in a niche product. The main uncertainty is the true sensitivity and volume of data exposed - CVSS rates confidentiality as Low, but IDOR over an enumerable company/user object space can aggregate into a larger breach; verify the actual data classes returned with the vendor.

Exploit ScenarioDerived

A remote, unauthenticated attacker sends requests to the /Companies/Edit/{id} endpoint while incrementing or substituting the {id} value. Because authorization is not enforced per object, the application returns records belonging to other companies or users, letting the attacker iterate through valid identifiers and harvest restricted application data. No public exploit code is referenced, but exploitation requires only a browser or scripted HTTP client given AV:N/AC:L/PR:N/UI:N.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet

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AnalysisAIv1 – Nov 03, 2026

Unauthenticated information disclosure in AM Systems Alo Suite allows remote attackers to read records belonging to other companies or users by substituting the object identifier in requests to the '/Companies/Edit/{id}' endpoint. The underlying flaw (CWE-639, IDOR) is a missing authorization check on the supplied identifier, so confidentiality impact is limited but the exposure is tenant-crossing: any reachable deployment of the affected product can be queried for data the requester should not see, and its practical value depends on identifiers being enumerable or predictable. Reported severity is moderate (6.9 on CVSS v4.0; assessed 5.3-equivalent vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N), the issue is not in CISA KEV and no public exploit identified at time of analysis, and the vuln.today decision label places remediation in the 'this month' window rather than an emergency response.

RemediationAI

No vendor-released patch identified at time of analysis: the input contains no fixed version, patch reference, commit or GitHub PR for this CVE, so the INCIBE-CERT notice (https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-am-systems-alo-suite) is the only authoritative source and should be checked directly for a vendor update covering AM Systems Alo Suite before assuming a fix exists. Until a fixed build is confirmed, the decisive mitigation is code-level: enforce server-side object-level authorization on '/Companies/Edit/{id}' so the record returned is checked against the requester's tenant or ownership rather than the raw client-supplied identifier - this is the only control that removes the exposure, and it requires development effort or a vendor-supplied hotfix rather than configuration. Compensating controls in the interim: restrict reachability of the application, and particularly the '/Companies/Edit' route, to trusted networks, VPN or an authenticating reverse proxy / WAF rule set, accepting the trade-off that legitimate remote and mobile users lose direct access; add WAF or proxy rules that reject or alert on rapid sequences of varying identifiers on that path, which raises the cost of enumeration but can produce false positives against bulk administrative workflows and does not fix the underlying missing check; and reduce the blast radius by ensuring the data returned on that endpoint is limited to fields strictly required for the edit form. Review application and proxy logs for patterns of sequential or out-of-tenant identifier requests on '/Companies/Edit/{id}' to establish whether disclosure has already occurred.

Affected VersionsENISA

ALO Suite 25_09_15.03_35

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Technical ContextAI · show details

CWE-639 (Authorization Bypass Through User-Controlled Key) is the root-cause class here: the application accepts a client-supplied object reference - the '{id}' path segment of '/Companies/Edit/{id}' - and uses it to look up a company record without confirming that the requesting principal is entitled to that object. The CPE string cpe:2.3:a:am_system:alo_suite:*:*:*:*:*:*:*:* records a wildcard version, so the advisory from INCIBE-CERT does not bound the affected range to a specific release, and no platform or configuration qualifier is given. Both the reported CVSS v4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N) and the independently assessed CVSS v3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) agree that no authentication, no user interaction and no attack preconditions are required beyond network reachability, and that impact is confined to read-only confidentiality loss with no integrity or availability effect on the vulnerable system or on downstream components. The disclosed trigger is exactly the modification of the identifier passed to the company-edit endpoint; the sources do not describe the internal storage, identifier generation scheme, or whether identifiers are sequential, so enumeration feasibility should be treated as probable but unverified. Note that a route named '/Companies/Edit' may also be reachable in write contexts, but no integrity or modification impact is evidenced, and nothing in the data supports race conditions, memory-safety behaviour, or timing-based mechanisms.

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Severity by source

Vendor (INCIBE) PRIMARY 6.9 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
vuln.today AI 5.3 MEDIUM

Unauthenticated remote IDOR reachable over the network (AV:N/AC:L/PR:N/UI:N); only read disclosure of limited data, so C:L and I:N/A:N, with no scope change.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (INCIBE).

CVSS VectorVendor: INCIBE

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vulnerable system: Confidentiality
Low
Vulnerable system: Integrity
None
Vulnerable system: Availability
None
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

DescriptionCVE.org

Direct Object Reference (IDOR) vulnerability in Alosuite due to insufficient authorization checks when processing object identifiers. By modifying the identifier provided to the ‘/Companies/Edit/{id}’ endpoint, an attacker can access information associated with other companies or users without the appropriate authorization. The vulnerability allows unauthenticated remote attackers to enumerate valid object identifiers and retrieve information that should be restricted to authorized users, resulting in the unauthorized disclosure of application data.

Threat Intelligence Overview

Prevalence
Low
niche AM Systems business application, industry-specific, limited enterprise footprint
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS N/A
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
Yes
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

34
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +34
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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