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CVE Record

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.

MediumCVSS 6.1Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

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.
Prepared
Confidence
medium
Sources
4

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.

Open ATT&CK lookup
cwe · low confidence lookup

CWE-639: Exact CWE lookup

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.

Open ATT&CK lookup
cwe · medium confidence lookup

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.

Open ATT&CK lookup
description · low confidence lookup

Privilege behavior lookup

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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2025-8887 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.1 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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.

1CVSS vectors
3Timeline events
1ADP providers
3Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

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.

ScoreVersionSeverityVectorExploitImpactSource
6.1CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N1.84.2TR-CERT

Vulnerability scoring details

Base CVSS 3.1 score

6.1Medium
CVSS 3.1 vector shape for CVE-2025-8887Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Usta Information Systems Inc.Aybs Interaktif2024unaffected
Weakness

CWE details

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.

CWE-639 · source CWE mapping

Authorization Bypass Through User-Controlled Key

Authorization Bypass Through User-Controlled Key represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

CWE-862 · source CWE mapping

Missing Authorization

Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.