CVE-2026-3659

{"id": "CVE-2026-3659", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "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}]}, "published": "2026-04-15T09:16:32.083", "references": [{"url": "https://plugins.trac.wordpress.org/browser/wp-circliful/tags/1.2/wp-circliful.php#L241", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-circliful/tags/1.2/wp-circliful.php#L257", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-circliful/tags/1.2/wp-circliful.php#L263", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-circliful/tags/1.2/wp-circliful.php#L285", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-circliful/trunk/wp-circliful.php#L241", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-circliful/trunk/wp-circliful.php#L257", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-circliful/trunk/wp-circliful.php#L263", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/wp-circliful/trunk/wp-circliful.php#L285", "source": "security@wordfence.com"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/030534e2-bf7d-42e4-94a1-986f629bea15?source=cve", "source": "security@wordfence.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Primary", "source": "security@wordfence.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "The WP Circliful plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'id' shortcode attribute of the [circliful] shortcode and via multiple shortcode attributes of the [circliful_direct] shortcode in all versions up to and including 1.2. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. Specifically, in the circliful_shortcode() function, the 'id' attribute value is concatenated directly into an HTML id attribute (line 285) without any escaping, allowing an attacker to break out of the double-quoted attribute and inject arbitrary HTML event handlers. Similarly, the circliful_direct_shortcode() function (line 257) outputs all shortcode attributes directly into HTML data-* attributes without 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."}], "lastModified": "2026-04-22T20:23:16.350", "sourceIdentifier": "security@wordfence.com"}