CVEs-PoC/2025/CVE-2025-5301.md

CVE-2025-5301

Description

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.

POC

Reference

• http://seclists.org/fulldisclosure/2025/Jun/18
• https://r.sec-consult.com/onlyoffice
• https://sec-consult.com/vulnerability-lab/advisory/reflected-cross-site-scripting-in-onlyoffice-docs-documentserver/

Github

No PoCs found on GitHub currently.