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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.12.3]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Astra", "source": "cna", "vendor": "brainstormforce"}, "product": "astra", "vendor": "brainstormforce"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": null}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "wordpress", "vendor": "wordpress"}], "analysis": {"en": {"generated_at": "2026-03-17T17:24:42.165228+00:00", "value": {"mitigation_remediation": ["Backup your WordPress site and database", "Check for and install the latest Astra theme version if available (greater than 4.12.3)", "If an upgrade is not possible, remove or sanitize the `ast-page-background-meta` and `ast-content-background-meta` fields from user\u2011editable content", "Consider restricting Contributor users from editing post meta fields that influence background styling", "Deploy a site\u2011wide content filtering plugin that sanitizes post meta before rendering"], "summary": {"action": "Patch Now", "impact": "Stored Cross\u2011Site Scripting (XSS)"}, "threat_synthesis": {"affected_systems": "All installations of WordPress that use the Astra theme and run any version through and including 4.12.3 are susceptible, as the vulnerability exists in every build up to that point. The description specifically notes that the issue is present in \"all versions up to, and including, 4.12.3\".\n", "description_and_impact": "Key detail from vendor description: The Astra theme includes a stored cross\u2011site scripting flaw in the `ast-page-background-meta` and `ast-content-background-meta` post meta fields. The flaw arises from insufficient input sanitization during meta registration and from missing output escaping when rendering four CSS\u2011context sub\u2011properties -- background-color, background-image, overlay-color, and overlay-gradient. As a result, an attacker who can edit these fields can inject arbitrary JavaScript. The injected script executes whenever any visitor loads an affected page, enabling actions such as session hijacking, defacement, or other malicious behaviors. The weakness is identified as CWE\u201179.\n", "risk_and_exploitability": "The CVSS score of 6.4 classifies this issue as medium severity. An EPSS score of less than 1% suggests a low likelihood of exploitation in the wild; it is not listed in the CISA KEV catalog. Attackers must first be authenticated with Contributor-level privileges or higher, a role commonly available on multi\u2011user WordPress sites. Because the vulnerability is stored in post meta, the impact once a payload is injected affects all subsequent users who view the page, leading to potentially wide\u2011scale compromise of confidentiality, integrity, and availability for site visitors."}}}}, "created": "2026-03-12T10:06:18.890058+00:00", "updated": "2026-03-20T14:37:39.935105+00:00", "vendors": ["brainstormforce", "brainstormforce$PRODUCT$astra", "wordpress", "wordpress$PRODUCT$wordpress"]}