Path Traversal in Onlyoffice
CVE-2023-34939
Onlyoffice Community Server before v12.5.2 was discovered to contain a remote code execution (RCE) vulnerability via the component UploadProgress.ashx.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.050 (92.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.050 · newest: 0.050 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/firsov/onlyoffice (Exploit)
- github.com/ONLYOFFICE/CommunityServer/blob/master/CHANGELOG.md (Release Notes)
- github.com/firsov/onlyoffice/blob/main/CVE-2023-34939-PoC.md (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-34939?
- CVE-2023-34939 is a critical-severity vulnerability in Onlyoffice, classified under Path Traversal. CVSS score: 9.8/10. Published 2023-06-22.
- How severe is CVE-2023-34939?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-34939 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.