XSS in Onlyoffice Server
CVE-2021-43446
ONLYOFFICE all versions as of 2021-11-08 is vulnerable to Cross Site Scripting (XSS). The "macros" feature of the document editor allows malicious cross site scripting payloads to be used.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.008 (53.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Onlyoffice Server
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (Product, Vendor Advisory)
- cve@mitre.org (Exploit, Third Party Advisory, Mitigation)
Frequently asked questions
- What is CVE-2021-43446?
- CVE-2021-43446 is a medium-severity vulnerability in Onlyoffice Server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-01-23.
- How severe is CVE-2021-43446?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2021-43446 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.