ONLYOFFICE Docs Server Path Traversal Vulnerability
ONLYOFFICE Docs contains a path traversal vulnerability that can occur when JWT is used, via a /.. sequence in an image upload parameter and could allow for remote code execution.
CISA required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating
Read at CISA Known Exploited Vulnerabilities catalog
- Vendor
- ONLYOFFICE
- Product
- Docs
- EPSS
- 0.30 (p98)
- CISA KEV
- added 8 Oct 2026, due 11 Oct 2026 (21d overdue)
- Exploitation
- observed in the wild
- Fix
- available
- Weakness
- CWE-22
- Exposure class
- Collaboration
Why it ranks 62 (Critical)
- CISA KEV listed, remediation due 2026-10-11
- EPSS 0.30 (elevated)
- Product class: collaboration
- Covered by 2 independent sources
- Fix available
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- CISA Known Exploited Vulnerabilities catalog (nvd.nist.gov)
- Vendor advisory (github.com)
- CVE-2021-3199 on this site · NVD · CVE.org · Vulnpedia · KEV
Related coverage
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