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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OnlyOffice | Docs (DocumentServer) | <=8.3.1 | — |
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- ONLYOFFICE Docs (DocumentServer) - Reflected Cross-Site Scripting http/cves/2025/CVE-2025-5301.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.
References
- https://r.sec-consult.com/onlyoffice third-party-advisory
- https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#832 release-notes