Which versions of Online Product Reservation System are affected by CVE-2026-0589?

Organizations using A vulnerability face moderate risk from CVE-2026-0589, a improper authentication vulnerability rated CVSS 7.3.

Is there a public PoC exploit available for CVE-2026-0589?

Yes, a public proof-of-concept exploit is available for CVE-2026-0589. Prioritise patching immediately. EPSS: 0.3%.

How to fix or mitigate CVE-2026-0589?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Audit authentication configurations and rotate any potentially compromised credentials.

Online Product Reservation System CVE-2026-0589

Q: What is the CVSS score of CVE-2026-0589?

CVE-2026-0589 has a CVSS 4.0 base score of 5.5 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.3%.

MEDIUM

Improper Authentication (CWE-287)

2026-01-05 cna@vuldb.com

Authentication Bypass Online Product Reservation System

5.5

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

5.5 MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

HIGH MEDIUM

CVSS changed

Apr 29, 2026 - 01:11 NVD

7.3 (HIGH) 5.5 (MEDIUM)

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Jan 09, 2026 - 15:05 vuln.today

Public exploit code

CVE Published

Jan 05, 2026 - 13:15 nvd

HIGH 7.3

DescriptionCVE.org

A vulnerability was found in code-projects Online Product Reservation System 1.0. Impacted is an unknown function of the component Administration Backend. The manipulation results in improper authentication. The attack may be performed from remote. The exploit has been made public and could be used.

AnalysisAI

Online Product Reservation System versions up to 1.0 is affected by improper authentication (CVSS 7.3).

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Access Administration Backend

Exploit

Bypass authentication mechanism

Execution

Gain unauthorized admin access

Impact

Modify system data or user accounts