CVE-2026-62387
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Summary
The Grav API plugin (getgrav/grav-plugin-api) before 1.0.0-rc.16 shipped Access-Control-Allow-Origin: * as its default CORS configuration on all responses, including authenticated endpoints and preflight (OPTIONS) responses. Because the plugin accepts credentials via the Authorization and X-API-Token headers (set programmatically by JavaScript rather than via cookies), an attacker who obtains a valid access token (e.g., via log leakage, Referer headers, browser history, or network capture) can issue fully authenticated cross-origin requests from any malicious website to read sensitive data and perform write operations as the token's user. Fixed in 1.0.0-rc.16.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| getgrav | grav | 0 < 1.0.0-rc.16 | affected |
| getgrav | grav | 1.0.0-rc.16 | unaffected |
Weaknesses
- CWE-942: Permissive Cross-domain Security Policy with Untrusted Domains
References
- https://github.com/getgrav/grav/security/advisories/GHSA-93px-98wh-6fj2
- https://www.vulncheck.com/advisories/grav-rc-16-cors-misconfiguration-via-api-plugin
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