CVE-2021-22911
CriticalPublic PoC
Published: 27 May 2021
Published
27 May 2021
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.9182
99.7th percentile
Risk Priority
75
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-22911 is a critical-severity Special Element Injection (CWE-75) vulnerability in Rocket.Chat Rocket.Chat. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 0.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-10040
Vulnerability details
A improper input sanitization vulnerability exists in Rocket.Chat server 3.11, 3.12 & 3.13 that could lead to unauthenticated NoSQL injection, resulting potentially in RCE.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
rocket.chat
rocket.chat
3.11.0, 3.12.0, 3.13.0
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.