CVE-2026-76128

The eCommerce Product Catalog plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'style' Shortcode Attribute in all versions up to, and including, 3.5.10 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. The payload bypasses WordPress's save-time wp_kses_post sanitization because the malicious content is stored inside shortcode brackets with no HTML tags; the tainted HTML output is only generated at render time by the shortcode handler.

CVSS v3 6.4 MEDIUM

6.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.1 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://plugins.trac.wordpress.org/browser/ecommerce-product-catalog/tags/3.5.9/ic/simple-formbuilder/pluggable.php#L840
https://plugins.trac.wordpress.org/browser/ecommerce-product-catalog/tags/3.5.9/ic/simple-formbuilder/pluggable.php#L842
https://plugins.trac.wordpress.org/changeset/3656358/
https://www.wordfence.com/threat-intel/vulnerabilities/id/bb2778ee-f875-4494-ad42-fccc7b38d692?source=cve

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-25 10:18

Updated : 2026-08-26 16:19

NVD link : CVE-2026-76128

Mitre link : CVE-2026-76128

CVE.ORG link : CVE-2026-76128

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

{"id": "CVE-2026-76128", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-76128", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-25T11:09:42.703238Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security@wordfence.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 3.1}]}, "affected": [{"source": "security@wordfence.com", "affectedData": [{"vendor": "implecode", "product": "eCommerce Product Catalog", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "3.5.10"}], "defaultStatus": "unaffected"}]}], "published": "2026-08-25T10:18:13.413", "references": [{"url": "https://plugins.trac.wordpress.org/browser/ecommerce-product-catalog/tags/3.5.9/ic/simple-formbuilder/pluggable.php#L840", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/ecommerce-product-catalog/tags/3.5.9/ic/simple-formbuilder/pluggable.php#L842", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/changeset/3656358/", "source": "security@wordfence.com"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/bb2778ee-f875-4494-ad42-fccc7b38d692?source=cve", "source": "security@wordfence.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security@wordfence.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "The eCommerce Product Catalog plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'style' Shortcode Attribute in all versions up to, and including, 3.5.10 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. The payload bypasses WordPress's save-time wp_kses_post sanitization because the malicious content is stored inside shortcode brackets with no HTML tags; the tainted HTML output is only generated at render time by the shortcode handler."}], "lastModified": "2026-08-26T16:19:05.917", "sourceIdentifier": "security@wordfence.com"}