CVE-2025-5301 — exposed on the internet

CVE-2025-5301: CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') in OnlyOffice Docs (DocumentServer)

Internet exposure observed by OffSeq scans · last 30 days

Found on 1 internet-exposed hosts by OffSeq scans; no in-the-wild exploitation has been observed against OffSeq honeypots in this window.

About 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.

Vendor: OnlyOfficeCWE-79

OffSeq internet scanning found CVE-2025-5301 on 1 exposed hosts in the last 30 days. OffSeq honeypots have not recorded in-the-wild exploitation of this CVE in the current window — this page tracks its exposure footprint and status; if exploitation begins, the live honeypot signal will appear here.

References