Which versions of PHP are affected by CVE-2026-2166?

A high-severity vulnerability in the Online Reviewer System login component (CVE-2026-2166) poses an immediate risk to user authentication and system access control.

Is there a public PoC exploit available for CVE-2026-2166?

Yes, a public proof-of-concept exploit is available for CVE-2026-2166. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-2166?

Within 24 hours: Isolate affected Online Reviewer System instances from production if feasible, enable enhanced logging on login endpoints, and brief incident response team. Within 7 days: Deploy compensating controls (WAF rules blocking suspicious login patterns, IP whitelisting for administrative access), conduct threat assessment on login logs for breach indicators, and establish daily monitoring of CVE-2026-2166. Within 30 days: Evaluate alternative code-projects versions or products without this vulnerability, contact vendor for patch timeline, and develop migration plan if patch remains unavailable.

PHP CVE-2026-2166

Q: What is the CVSS score of CVE-2026-2166?

CVE-2026-2166 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: 0.0%.

MEDIUM

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)

2026-02-08 cna@vuldb.com

PHP SQLi Online Reviewer System Fabian

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

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 - 21:55 vuln.today

PoC Detected

Feb 10, 2026 - 15:12 vuln.today

Public exploit code

CVE Published

Feb 08, 2026 - 17:15 nvd

HIGH 7.3

DescriptionCVE.org

A security vulnerability has been detected in code-projects Online Reviewer System 1.0. The affected element is an unknown function of the file /login/index.php of the component Login. The manipulation of the argument username/password leads to sql injection. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used.

AnalysisAI

SQL injection in the Online Reviewer System 1.0 login function allows unauthenticated remote attackers to manipulate username and password parameters, potentially enabling unauthorized database access and data modification. With public exploit code available and no patch released, this vulnerability poses an immediate risk to deployed instances.

Technical ContextAI

Affects Online Reviewer System. A security vulnerability has been detected in code-projects Online Reviewer System 1.0. The affected element is an unknown function of the file /login/index.php of the component Login. The manipulation of the argument username/password leads to sql injection. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used.

RemediationAI

Monitor vendor advisories for a patch. Use parameterized queries. Implement input validation. Restrict network access to the affected service where possible.