CVE-2021-43448

MediumCVSS 5.3/10Last modified Jun 17, 2026

Description

ONLYOFFICE all versions as of 2021-11-08 is vulnerable to Improper Input Validation. A lack of input validation can allow an attacker to spoof the names of users who interact with a document, if the document id is known.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-20

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/ONLYOFFICE/serverThird Party Advisory
https://labs.nettitude.com/blog/exploiting-onlyoffice-web-sockets-for-unauthenticated-remote-code-execution/Exploit, Mitigation, Third Party Advisory
https://www.onlyoffice.com/Product, Vendor Advisory
https://github.com/ONLYOFFICE/serverThird Party Advisory
https://labs.nettitude.com/blog/exploiting-onlyoffice-web-sockets-for-unauthenticated-remote-code-execution/Exploit, Mitigation, Third Party Advisory
https://www.onlyoffice.com/Product, Vendor Advisory

Timeline

Published: Jan 23, 2023
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-434498.1ONLYOFFICE all versions as of 2021-11-08 is vulnerable to Server-Side Request Forgery (SSRF). The document editor service can be abused to r CVE-2021-43455.3The uListing plugin for WordPress is vulnerable to authorization bypass due to missing capability and nonce checks on the UlistingUserRole::CVE-2021-434519.8SQL Injection vulnerability exists in PHPGURUKUL Employee Record Management System 1.2 via the Email POST parameter in /forgetpassword.php.CVE-2021-434539.8A Heap-based Buffer Overflow vulnerability exists in JerryScript 2.4.0 and prior versions via an out-of-bounds read in parser_parse_for_stat CVE-2021-434547.8An Unquoted Service Path vulnerability exists in AnyTXT Searcher 1.2.394 via a specially crafted file in the ATService path. .CVE-2021-434557.8An Unquoted Service Path vulnerability exists in FreeLAN 2.2 via a specially crafted file in the FreeLAN Service path.CVE-2021-434567.8An Unquoted Service Path vulnerablility exists in Rumble Mail Server 0.51.3135 via via a specially crafted file in the RumbleService executa CVE-2021-434577.8An Unquoted Service Path vulnerability exists in bVPN 2.5.1 via a specially crafted file in the waselvpnserv service path.CVE-2021-434587.8An Unquoted Service Path vulnerability exits in Vembu BDR 4.2.0.1 via a specially crafted file in the (1) hsflowd, (2) VembuBDR360Agent, or CVE-2021-434595.4A Cross Site Scripting (XSS) vulnerability exists in Rumble Mail Server 0.51.3135 via the (1) domain and (2) path parameters.CVE-2021-43467.5The uListing plugin for WordPress is vulnerable to Unauthenticated Arbitrary Account Changes in versions up to, and including, 1.6.6. This i CVE-2021-434607.8An Unquoted Service Path vulnerability exists in System Explorer 7.0.0 via via a specially crafted file in the SystemExplorerHelpService ser