CVE-2026-118800
Full vulnerability record from the local CVENow database.
Description
The aBlocks – Gutenberg Blocks, User Dashboard Builder, Popup Builder, Form Builder & Animation Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'headingTag' parameter in all versions up to, and including, 2.18.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Severity
MEDIUM
CVSS score
6.4
(v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-11-07 07:17:03.230000
Last modified
2026-11-07 07:17:03.360000
View original CVE JSON
{
"id": "CVE-2026-118800",
"sourceIdentifier": "[email protected]",
"published": "2026-11-07T07:17:03.230",
"lastModified": "2026-11-07T07:17:03.360",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The aBlocks – Gutenberg Blocks, User Dashboard Builder, Popup Builder, Form Builder & Animation Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'headingTag' parameter in all versions up to, and including, 2.18.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "kodezen",
"product": "aBlocks – Gutenberg Blocks, User Dashboard Builder, Popup Builder, Form Builder & Animation Builder",
"defaultStatus": "unaffected",
"versions": [
{
"version": "0",
"lessThanOrEqual": "2.18.0",
"versionType": "semver",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
"baseScore": 6.4,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "CHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 3.1,
"impactScore": 2.7
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-79"
}
]
}
],
"references": [
{
"url": "https://plugins.trac.wordpress.org/browser/ablocks/tags/2.18.0/includes/blocks/heading/block.php#L159",
"source": "[email protected]"
},
{
"url": "https://plugins.trac.wordpress.org/browser/ablocks/tags/2.18.0/includes/blocks/heading/block.php#L162",
"source": "[email protected]"
},
{
"url": "https://plugins.trac.wordpress.org/browser/ablocks/tags/2.18.0/includes/classes/block-base-abstract.php#L128",
"source": "[email protected]"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?reponame=&old=3786225%40ablocks&new=3786225%40ablocks",
"source": "[email protected]"
},
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/fc051a2a-deb8-4888-abfb-c9d5ff27b0a7?source=cve",
"source": "[email protected]"
}
]
}