Security context

What an agent needs to avoid regressing past fixes and find the next vuln in this repo.

phw198/outlookgooglecalendarsync

              master @ 8a49486
            

Fixes

CVEs

MEDIUM

Peak severity

Highlights

Auth Bypass: 1 prior fix. Scrutinize any change in this area.

Outlook.Graph/O365Authenticator.cs: most-fixed (1 issue). Treat as high-risk during review.

0 high-severity fixes in this history; regressions here are high-impact.

Recurring patterns

The bug types that recur here, drawn from past fixes, not open vulnerabilities.

Auth Bypass: Using nativeclient redirect URIs with an embedded webview is vulnerable to local interception of OAuth codes. The application must enforce default system browser flows with localhost loopback redirects.

Transport Security: Misconfigured or outdated SecurityProtocol settings can allow connection fallback to TLS 1.0 or SSLv3, exposing calendar synchronization traffic to machine-in-the-middle attacks.

Information Disclosure: Querying public Google calendar events using plain-text user emails exposes personal identifiers (emails) to third-party observers. User identifiers must be securely hashed prior to transmission or lookup.