CVE-2025-5301

ONLYOFFICE Docs (DocumentServer) in versions equal and below 8.3.1 are affected by a reflected cross-site scripting (XSS) issue when opening files via the WOPI protocol. Attackers could inject malicious scripts via crafted HTTP POST requests, which are then reflected in the server's HTML response.

Score

CVSS 3.1 6.1 Medium

Status

Deferred - 551230f0-3615-47bd-b7cc-93e92e730bbf

Published

2025-06-12

Last modified

2025-06-18

Weaknesses

CWE-79

Affected products

• Docs Documentserver (Onlyoffice)

References

• https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#832
• https://r.sec-consult.com/onlyoffice
• http://seclists.org/fulldisclosure/2025/Jun/18
• https://sec-consult.com/vulnerability-lab/advisory/reflected-cross-site-scripting-in-onlyoffice-docs-documentserver/