CVE intelligence and bounded remediation

CVE-2023-33188 — Omni-notes is an open source note-taking application for Android

Medium CVSS 6.3

Omni-notes is an open source note-taking application for Android. The Omni-notes Android app had an insufficient path validation vulnerability when displaying the details of a note received through an externally-provided intent. The paths of the note's attachments were not properly validated, allowing malicious or compromised applications in the same device to force Omni-notes to copy files from its internal storage to its external storage directory, where they would have become accessible to any component with permission to read the external storage. Updating to the newest version (6.2.7) of Omni-notes Android fixes this vulnerability.

Severity
Medium
CVSS
6.3 (3.1)
Published
2023-05-27
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-441, CWE-610

Affected products

  • omninotes / omni_notes

Matched remediation archetype

Server-side request forgery and unintended proxying

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Inventory server-side URL fetchers, webhooks, importers, previews, redirects, proxies, and protocol handlers reachable from untrusted input.
  • Map egress paths to internal services, metadata endpoints, loopback, private address space, and privileged control planes.
  • Review DNS resolution, redirect, proxy, credential-forwarding, and URL parsing behavior without requesting sensitive targets.

Remediate safely

  • Replace arbitrary destinations with named integrations or a strict allowlist of schemes, hosts, ports, and paths.
  • Resolve and validate every destination and redirect hop, then enforce egress policy independently of application checks.
  • Remove ambient credentials and sensitive headers from fetchers; apply response size, time, and content limits.

Authoritative sources

Complete CVE record and remediation plan

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