CVE-2026-8883

{"id": "CVE-2026-8883", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-8883", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-09T14:12:23.710404Z"}}], "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": "helpstring", "product": "Global Body Mass Index Calculator", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "1.2"}], "defaultStatus": "unaffected"}]}], "published": "2026-06-09T05:16:39.897", "references": [{"url": "https://plugins.trac.wordpress.org/browser/global-body-mass-index-calculator/tags/1.2/gbmicalc.php#L134", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/global-body-mass-index-calculator/tags/1.2/gbmicalc.php#L335", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/global-body-mass-index-calculator/tags/1.2/gbmicalc.php#L345", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/global-body-mass-index-calculator/tags/1.2/gbmicalc.php#L476", "source": "security@wordfence.com"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/06804bed-17c5-413c-a31b-f6f039015e26?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 Global Body Mass Index Calculator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'gbmicalc' shortcode in versions up to, and including, 1.2. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes in the GBMI_Calc_Widget::widget() function. Shortcode attributes are extracted directly into local variables via @extract($args) and then echoed unescaped into an HTML style attribute (height/width) and HTML body context (title), allowing attribute-breakout payloads. 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": "2026-06-17T11:04:34.387", "sourceIdentifier": "security@wordfence.com"}