CVE-2025-5261: IDOR in PozitifIK's Pik Online

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-08-20 · updated 2026-06-17
Weakness: CWE-639

Description

Authorization Bypass Through User-Controlled Key vulnerability in Pik Online Yazılım Çözümleri A.Ş. Pik Online allows Exploitation of Trusted Identifiers. This issue affects Pik Online: before 3.1.5.

Affected products

Pik Online Yazılım Çözümleri A.Ş. Pik Online: before 3.1.5 — fixed in 3.1.5

How to fix

Upgrade to a fixed version: Pik Online Yazılım Çözümleri A.Ş. Pik Online 3.1.5. Check the vendor advisory for mitigations.

References

https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-25-0201
https://www.usom.gov.tr/bildirim/tr-25-0201

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