CVE-2026-8905

{"id": "CVE-2026-8905", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-8905", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-24T14:48:22.360481Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security@wordfence.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security@wordfence.com", "affectedData": [{"vendor": "osiris8", "product": "Osiris Signature Banner", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "0.5"}], "defaultStatus": "unaffected"}]}], "published": "2026-06-24T07:16:28.777", "references": [{"url": "https://plugins.trac.wordpress.org/browser/osiris-signature-banner/tags/0.5/osiris-signature-banner.php#L107", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/osiris-signature-banner/tags/0.5/osiris-signature-banner.php#L118", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/osiris-signature-banner/tags/0.5/osiris-signature-banner.php#L139", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/osiris-signature-banner/tags/0.5/osiris-signature-banner.php#L189", "source": "security@wordfence.com"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/03226722-000c-4bfe-a09b-e75882274845?source=cve", "source": "security@wordfence.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security@wordfence.com", "description": [{"lang": "en", "value": "CWE-352"}]}], "descriptions": [{"lang": "en", "value": "The Osiris Signature Banner plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 0.5. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to update settings and inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link."}], "lastModified": "2026-06-25T13:26:11.740", "sourceIdentifier": "security@wordfence.com"}