CVE-2026-3534

{"id": "CVE-2026-3534", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-3534", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-03-11T14:00:26.814244Z"}}], "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": "brainstormforce", "product": "Astra", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "4.12.3"}], "defaultStatus": "unaffected"}]}], "published": "2026-03-11T07:16:45.213", "references": [{"url": "https://themes.trac.wordpress.org/browser/astra/4.12.3/inc/core/common-functions.php#L1629", "source": "security@wordfence.com"}, {"url": "https://themes.trac.wordpress.org/browser/astra/4.12.3/inc/core/common-functions.php#L1640", "source": "security@wordfence.com"}, {"url": "https://themes.trac.wordpress.org/browser/astra/4.12.3/inc/metabox/class-astra-meta-boxes.php#L1380", "source": "security@wordfence.com"}, {"url": "https://themes.trac.wordpress.org/browser/astra/4.12.3/inc/metabox/class-astra-meta-boxes.php#L1386", "source": "security@wordfence.com"}, {"url": "https://themes.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=316958%40astra%2F4.12.4&old=312219%40astra%2F4.12.3", "source": "security@wordfence.com"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/acf2906b-1ee5-4272-bf6d-36a02023f658?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 Astra theme for WordPress is vulnerable to Stored Cross-Site Scripting via the `ast-page-background-meta` and `ast-content-background-meta` post meta fields in all versions up to, and including, 4.12.3. This is due to insufficient input sanitization on meta registration and missing output escaping in the `astra_get_responsive_background_obj()` function for four CSS-context sub-properties (`background-color`, `background-image`, `overlay-color`, `overlay-gradient`). 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."}, {"lang": "es", "value": "El tema Astra para WordPress es vulnerable a Cross-Site Scripting Almacenado a trav\u00e9s de los campos de metadatos de publicaci\u00f3n 'ast-page-background-meta' y 'ast-content-background-meta' en todas las versiones hasta la 4.12.3, inclusive. Esto se debe a una sanitizaci\u00f3n de entrada insuficiente en el registro de metadatos y a una falta de escape de salida en la funci\u00f3n 'astra_get_responsive_background_obj()' para cuatro subpropiedades de contexto CSS ('background-color', 'background-image', 'overlay-color', 'overlay-gradient'). Esto hace posible que atacantes autenticados, con acceso de nivel Colaborador y superior, inyecten scripts web arbitrarios en p\u00e1ginas que se ejecutar\u00e1n cada vez que un usuario acceda a una p\u00e1gina inyectada."}], "lastModified": "2026-06-17T10:43:44.243", "sourceIdentifier": "security@wordfence.com"}