CVE-2021-43445 is an Incorrect Access Control vulnerability affecting all versions of ONLYOFFICE as of November 8, 2021, specifically within the ONLYOFFICE server. An attacker can authenticate to the web socket service of the document editor by leveraging a default JWT signing key. This vulnerability carries a critical CVSS score of 9.8, indicating a network-based attack with low complexity, requiring no user interaction, and leading to complete compromise of confidentiality, integrity, and availability. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, the high severity warrants immediate attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 7.0.0.49CPE matchmatch criteria | cpe:2.3:a:onlyoffice:server:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.