Is there a public PoC exploit available for EUVD-2026-21301?

Yes, a public proof-of-concept exploit is available for EUVD-2026-21301. Prioritise patching immediately. EPSS: 0.0%.

PHP EUVD-2026-21301

Q: What is the CVSS score of EUVD-2026-21301?

EUVD-2026-21301 has a CVSS 4.0 base score of 2.1 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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%.

| CVE-2026-6010 LOW

SQL Injection (CWE-89)

2026-04-10 VulDB

GHSA-42q7-q9v4-qq54

SQLi PHP

2.1

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

2.1 LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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:L/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

Low

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

5.3 (MEDIUM) 2.1 (LOW)

PoC Detected

Apr 10, 2026 - 04:17 vuln.today

Public exploit code

EUVD ID Assigned

Apr 10, 2026 - 03:45 euvd

EUVD-2026-21301

Analysis Generated

Apr 10, 2026 - 03:45 vuln.today

CVE Published

Apr 10, 2026 - 03:30 nvd

MEDIUM 5.3

DescriptionCVE.org

A security flaw has been discovered in CodeAstro Online Classroom 1.0/2.php. Affected by this vulnerability is an unknown functionality of the file /OnlineClassroom/takeassessment2.php?exid=14. Performing a manipulation of the argument Q1 results in sql injection. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks.

AnalysisAI

SQL injection in CodeAstro Online Classroom allows authenticated remote attackers to execute arbitrary SQL queries via the Q1 parameter in /OnlineClassroom/takeassessment2.php, enabling data exfiltration and modification with CVSS 6.3 severity; publicly available exploit code exists and the vulnerability affects all versions of the product.

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Risk assessment & exploitation conditions
Attack chain visualization
Remediation with exact patch versions
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Vulnerability AssessmentAI

Risk Assessment	This vulnerability presents moderate-to-significant real-world risk despite the 6.3 CVSS score. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	An authenticated student or instructor logs into a CodeAstro Online Classroom instance and navigates to an assessment page (takeassessment2.php?exid=14). The attacker crafts a malicious SQL payload in the Q1 parameter, such as Q1=1' UNION SELECT username, password FROM users WHERE '1'='1, and submits it. …
Remediation	Immediate mitigation requires upgrading to a patched version of CodeAstro Online Classroom; however, no specific patched version has been independently confirmed at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report.

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EUVD-2026-21301 vulnerability details – vuln.today

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PHP EUVD-2026-21301

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

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Vulnerability AssessmentAI

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External POC / Exploit Code