CVE intelligence and bounded remediation
CVE-2021-30975 — This issue was addressed by disabling execution of JavaScript when viewing a scripting dictionary
This issue was addressed by disabling execution of JavaScript when viewing a scripting dictionary. This issue is fixed in macOS Monterey 12.1, Security Update 2021-008 Catalina, macOS Big Sur 11.6.2. A malicious OSAX scripting addition may bypass Gatekeeper checks and circumvent sandbox restrictions.
- Severity
- High
- CVSS
- 8.6 (3.1)
- Published
- 2021-08-24
- CISA KEV
- Not currently listed
- Ecosystem
- apple/platform
- Weaknesses
- CWE-863
Affected products
- apple / mac_os_x
- apple / mac_os_x / 10.15.7
- apple / macos
Showing 3 representative product identities from 13 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.
Matched remediation archetype
Authorization bypass, IDOR, and cross-tenant access
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Map object and action authorization checks across API, UI, batch, import/export, and background-job paths.
- Identify tenant, ownership, role, and policy boundaries for affected resources and administrative operations.
- Use synthetic fixtures to compare intended access matrices without accessing another user's real data.
Remediate safely
- Enforce server-side authorization at each resource access and state transition using the authenticated principal and trusted tenant context.
- Scope data queries by tenant and ownership; treat client-supplied identifiers, roles, and policy claims as untrusted.
- Add deny-by-default policy tests for horizontal and vertical access across every affected transport.
Authoritative sources
Complete CVE record and remediation plan
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