Security readout for executives and security teams
Plain-English summary
Pik Online before 3.1.5 has an authorization flaw where user-controlled identifiers may let an unauthenticated network attacker access trusted records they should not see. The listed impact is confidentiality loss, not data modification or outage.
Executive priority
Prioritize remediation if Pik Online stores sensitive records or is internet-facing. The business risk is unauthorized disclosure, which can create privacy, contractual, and incident-response exposure even without system takeover.
Technical view
The CVE describes CWE-639 authorization bypass through a user-controlled key, commonly an IDOR pattern. CVSS 3.1 is 7.5 with network access, low complexity, no privileges, no user interaction, unchanged scope, high confidentiality impact, and no integrity or availability impact.
Likely exposure
Exposure is limited to organizations running Pik Online versions before 3.1.5. Internet-accessible deployments and systems holding sensitive business or personal records should be treated as higher priority.
Exploitation context
The provided bundle does not show CISA KEV listing or cite active exploitation. The CVSS vector indicates remote, unauthenticated access may be possible, but public exploit availability is not established here.
Researcher notes
Evidence is concise and source-limited. The affected range is before 3.1.5, CWE-639 is listed, and the CVSS vector supports unauthenticated remote confidentiality impact. No exploit details or vendor workaround are included in the bundle.
Mitigation direction
- Identify all Pik Online deployments and their versions.
- Move affected systems off versions before 3.1.5.
- Check vendor and Turkish government advisories for exact remediation guidance.
- Restrict external access until remediation is confirmed.
- Review logs for unusual object access patterns.
Validation and detection
- Confirm deployed Pik Online version is 3.1.5 or later.
- Inventory public and internal URLs exposing Pik Online.
- Verify authorization checks prevent cross-user object access.
- Review access logs for repeated identifier probing.
- Document remediation evidence for vulnerability management closure.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-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 lookupPrivilege 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 lookupCVE-2025-5261 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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.
SSVC decision data
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N3.93.6TR-CERTVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.usom.gov.tr/bildirim/tr-25-0201CVE reference, TR-CERT · government-resource, broken-link
- https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-25-0201CVE reference, TR-CERT · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
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.