CVE-2026-2110 identifies a security weakness in the Tasin1025 SwiftBuy product, specifically within the /login.php functionality. The vulnerability stems from an improper restriction on excessive authentication attempts, meaning the application does not adequately limit the number or rate of login attempts from a single source. This flaw can be exploited remotely without requiring authentication or user interaction, although the attack complexity is rated as high, indicating that successful exploitation demands considerable effort or resources. The vulnerability could facilitate brute force or credential stuffing attacks, allowing attackers to systematically try multiple passwords or credentials to gain unauthorized access. The product uses a rolling release model, complicating version tracking and patch management. The vendor has not responded to early disclosure efforts, and no official patches or updates have been released. The CVSS 4.0 score is 6.3 (medium), reflecting network attack vector, high attack complexity, no privileges or user interaction needed, and low impact on confidentiality. No known exploits are actively used in the wild, but a public exploit is available, increasing the risk of future attacks. The vulnerability primarily threatens the confidentiality and integrity of user accounts and potentially sensitive data accessible post-login.

For European organizations, this vulnerability poses a risk of unauthorized access to user accounts and internal systems if attackers successfully perform brute force or credential stuffing attacks. This could lead to data breaches, fraud, or disruption of e-commerce operations. Given SwiftBuy's role as an e-commerce platform, compromised accounts could result in financial losses, reputational damage, and regulatory penalties under GDPR if personal data is exposed. The medium severity and high attack complexity reduce immediate risk but do not eliminate it, especially as public exploits exist. Organizations relying on SwiftBuy for online transactions or customer management should be vigilant, as attackers may target these platforms to exploit weak authentication controls. The lack of vendor response and patches increases the window of exposure, necessitating proactive defensive measures.

Since no official patches are available, European organizations should implement compensating controls to reduce risk. These include deploying web application firewalls (WAFs) with rate-limiting rules to block excessive login attempts, enabling multi-factor authentication (MFA) to reduce reliance on passwords, and monitoring authentication logs for suspicious activity such as repeated failed logins from the same IP or user accounts. Organizations should also enforce strong password policies and consider account lockout mechanisms after a defined number of failed attempts. Network-level protections such as IP reputation filtering and geo-blocking of suspicious regions may help. Regular security assessments and penetration testing focused on authentication mechanisms can identify weaknesses. Finally, organizations should maintain close communication with the vendor and monitor for updates or patches to remediate the vulnerability once available.