CVE intelligence and bounded remediation

CVE-2022-47757 — Imo Imo security vulnerability

Critical CVSS 9.8

In imo.im 2022.11.1051, a path traversal vulnerability delivered via an unsanitized deeplink can force the application to write a file into the application's data directory. This may allow an attacker to save a shared library under a special directory which the app uses to dynamically load modules. Loading the library can lead to arbitrary code execution.

Severity
Critical
CVSS
9.8 (3.1)
Published
2023-05-04
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-22

Affected products

  • imo / imo / 2022.11.1051

Matched remediation archetype

Path traversal, unsafe upload, and file handling

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Check exposure

  • Trace untrusted filenames, archive entries, URLs, and path segments into read, write, include, extraction, and upload operations.
  • Identify filesystem roots, mount permissions, symbolic-link behavior, archive handling, and whether uploaded content is web-accessible or executable.
  • Review canonicalization and containment checks across supported operating systems and storage backends.

Remediate safely

  • Generate server-side storage identifiers and resolve paths beneath a fixed root using filesystem-aware containment checks.
  • Reject absolute, parent-relative, alternate-separator, device, link, and archive entries that escape the intended root.
  • Store uploads outside executable or served paths, validate type and size, and use private atomic temporary files.

Authoritative sources

Complete CVE record and remediation plan

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