CVE-2025-8887: IDOR in Usta Information Systems' Aybs Interaktif
Authorization Bypass Through User-Controlled Key, Missing Authorization, Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Usta Information Systems Inc. Aybs Interaktif allows Forceful Browsing, Parameter Injection, Input Data Manipulation.
This issue affects Aybs Interaktif: from 2024 through 28082025.
Security readout for executives and security teams
Plain-English summary
CVE-2025-8887 is an authorization flaw in Usta Information Systems Aybs Interaktif. A low-privileged user may access sensitive information they should not see by manipulating user-controlled references. Business impact is primarily confidentiality loss, with some integrity risk. The source bundle does not name a fixed version or confirm exploitation.
Executive priority
Treat this as a moderate-priority confidentiality issue. It warrants timely review if Aybs Interaktif is deployed, especially in environments containing citizen, customer, or operational data. Escalate if the application is broadly accessible to low-privileged users.
Technical view
The CVE describes authorization bypass through user-controlled keys, missing authorization, and sensitive information exposure. Mapped weaknesses are CWE-200, CWE-639, and CWE-862. CVSS 3.1 is 6.1 with local attack vector, low complexity, low privileges, no user interaction, high confidentiality impact, and low integrity impact.
Likely exposure
Exposure is likely limited to organizations running Aybs Interaktif versions from 2024 through 28082025, especially where low-privileged users have access to the application or local environment. The bundle provides no CPEs and no deployment details.
Exploitation context
The source bundle does not show CISA KEV listing or any cited evidence of active exploitation. The weakness pattern is consistent with IDOR-style access-control failures, but exploitability specifics are not provided and should not be assumed.
Researcher notes
Evidence is limited to the CVE record and government advisory references. The CVSS local vector conflicts somewhat with web-like terms such as forceful browsing and parameter injection, so validation should rely on vendor details and controlled testing rather than assumptions.
Mitigation direction
Check Usta Information Systems and Turkish government advisories for fixed versions or official mitigation.
Restrict Aybs Interaktif access to trusted users until vendor guidance is applied.
Review role-based authorization around records, user identifiers, and object references.
Reduce low-privileged account access to sensitive workflows where operationally possible.
Monitor application logs for unusual record access or parameter manipulation patterns.
Validation and detection
Inventory Aybs Interaktif deployments and identify versions from 2024 through 28082025.
Confirm whether affected instances contain sensitive records accessible to low-privileged users.
Review application authorization checks for direct object references and user-controlled keys.
Perform controlled authorization testing in a non-production environment with approved accounts.
Check logs for unexpected access to records outside a user's normal authorization scope.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
cwe · medium confidence lookup
CWE-200: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
CWE-862: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-200 · source CWE mapping
Exposure of Sensitive Information to an Unauthorized Actor
Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Authorization Bypass Through User-Controlled Key represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.