CVE-2026-107751 (GCVE-0-2026-107751)
Vulnerability from cvelistv5 – Published: 2026-10-14 07:43 – Updated: 2026-10-14 07:43
VLAI
EPSS
VEX
Title
Mang Board <= 2.4.3 - Unauthenticated Stored Cross-Site Scripting via 'user_name' Parameter
Summary
The Mang Board plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'user_name' parameter in all versions up to, and including, 2.4.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The save-time sanitizer mbw_htmlspecialchars2() is ineffective against this vector because the exploit payload relies solely on unquoted HTML attribute syntax using only spaces, alphanumerics, and characters such as =, parentheses, and dots — none of which are escaped.
Severity
7.2 (High)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
8 references
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| kitae-park | Mang Board |
Affected:
0 , ≤ 2.4.3
(semver)
|
guessed |
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"product": "Mang Board",
"vendor": "kitae-park",
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"status": "affected",
"version": "0",
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"value": "leon figueira"
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}
],
"metrics": [
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"version": "3.1"
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],
"problemTypes": [
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"description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
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}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-14T07:43:34.349Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/72650c92-918a-4486-9365-11bcb6b6741a?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/templates/tpl.button.php#L75"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/includes/skin-filters.php#L50"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/includes/functions/func.api.php#L146"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/api/mb-board.php#L24"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/includes/mb-actions.php#L520"
},
{
"url": "https://wordpress.org/plugins/mangboard/"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3738898/mangboard/trunk/templates/tpl.button.php"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-10-08T19:02:41.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2026-10-13T19:22:16.000Z",
"value": "Disclosed"
}
],
"title": "Mang Board \u003c= 2.4.3 - Unauthenticated Stored Cross-Site Scripting via \u0027user_name\u0027 Parameter"
}
},
"cveMetadata": {
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"assignerShortName": "Wordfence",
"cveId": "CVE-2026-107751",
"datePublished": "2026-10-14T07:43:34.349Z",
"dateReserved": "2026-10-08T18:47:21.146Z",
"dateUpdated": "2026-10-14T07:43:34.349Z",
"state": "PUBLISHED"
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"dataVersion": "5.2",
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"epss": "0.00322",
"percentile": "0.23596"
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"nvd": {
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"product": "Mang Board",
"vendor": "kitae-park",
"versions": [
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"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"source": "security@wordfence.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The Mang Board plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u0027user_name\u0027 parameter in all versions up to, and including, 2.4.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The save-time sanitizer mbw_htmlspecialchars2() is ineffective against this vector because the exploit payload relies solely on unquoted HTML attribute syntax using only spaces, alphanumerics, and characters such as =, parentheses, and dots \u2014 none of which are escaped."
}
],
"id": "CVE-2026-107751",
"lastModified": "2026-10-14T14:26:59.367",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.2,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
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},
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},
"published": "2026-10-14T08:17:04.570",
"references": [
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/api/mb-board.php#L24"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/includes/functions/func.api.php#L146"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/includes/mb-actions.php#L520"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/includes/skin-filters.php#L50"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.3/templates/tpl.button.php#L75"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/changeset/3738898/mangboard/trunk/templates/tpl.button.php"
},
{
"source": "security@wordfence.com",
"url": "https://wordpress.org/plugins/mangboard/"
},
{
"source": "security@wordfence.com",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/72650c92-918a-4486-9365-11bcb6b6741a?source=cve"
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"sourceIdentifier": "security@wordfence.com",
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"weaknesses": [
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"type": "Primary"
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]
}
}
}
}
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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