CVE-2021-21433 json
Remote code execution on discord-recon .dirsearch and .arjun commands due to improper input validation
published 2021-04-09 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-8707
- cvss
- 9.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.3%
- EPSS 3.3% chance of exploitation in 30 days, percentile 88%
- public exploits
- 0
- none known
Summary
Discord Recon Server is a bot that allows you to do your reconnaissance process from your Discord. Remote code execution in version 0.0.1 would allow remote users to execute commands on the server resulting in serious issues. This flaw is patched in 0.0.2.
Patch / fix
- demon1a discord-recon 0.0.2
Exploit prediction
3.28% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/DEMON1A/Discord-Recon/issues/6 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
Affected products
- DEMON1A Discord-Recon
Classification
References
-
github.com
/DEMON1A/Discord-Recon/commit/26e2a084679679cccdeeabbb6889ce120eff7e50
patch, third-party-advisory
-
github.com
/DEMON1A/Discord-Recon/issues/6
exploit, issue-tracking, patch, third-party-advisory
-
github.com
/DEMON1A/Discord-Recon/security/advisories/GHSA-65fm-5x64-gv9x
third-party-advisory
Sources
- CVE List CVE-2021-21433
- NVD CVE-2021-21433
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.