CVE-2026-4334

{"id": "CVE-2026-4334", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-4334", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-28T10:09:43.921367Z"}}], "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": "3uu", "product": "Shariff Wrapper", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "4.6.20"}], "defaultStatus": "unaffected"}]}], "published": "2026-05-28T09:16:45.360", "references": [{"url": "https://plugins.trac.wordpress.org/browser/shariff/trunk/shariff.php#L1143", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/shariff/trunk/shariff.php#L1144", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/shariff/trunk/shariff.php#L868", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/shariff/trunk/shariff.php#L965", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3532532%40shariff&new=3532532%40shariff&sfp_email=&sfph_mail=", "source": "security@wordfence.com"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e037d22a-3d4d-4f70-a749-6d6c552c7553?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 Shariff Wrapper plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'headline' parameter in the [shariff] shortcode in all versions up to, and including, 4.6.20 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 vulnerability occurs because the plugin uses a custom wp_kses implementation with permissive allowed HTML tags, and then performs a str_replace operation that injects HTML after sanitization, allowing event handlers to be introduced through the %total placeholder in the style attribute."}], "lastModified": "2026-06-17T10:56:26.240", "sourceIdentifier": "security@wordfence.com"}