CVE intelligence and bounded remediation

CVE-2021-29466 — Discord-Recon is a bot for the Discord chat service

High CVSS 7.5

Discord-Recon is a bot for the Discord chat service. In versions of Discord-Recon 0.0.3 and prior, a remote attacker is able to read local files from the server that can disclose important information. As a workaround, a bot maintainer can locate the file `app.py` and add `.replace('..', '')` into the `Path` variable inside of the `recon` function. The vulnerability is patched in version 0.0.4.

Severity
High
CVSS
7.5 (3.1)
Published
2021-04-22
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-24, CWE-22

Affected products

  • discord / discord-recon

Matched remediation archetype

Path traversal, unsafe upload, and file handling

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

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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