CVE-2023-34939

Public Exploit

Description

Onlyoffice Community Server before v12.5.2 was discovered to contain a remote code execution (RCE) vulnerability via the component UploadProgress.ashx.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 12.43% Top 10%
Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/firsov/onlyoffice exploit
https://github.com/ONLYOFFICE/CommunityServer/blob/master/CHANGELOG.md#version-1252 release notes
https://github.com/firsov/onlyoffice/blob/main/CVE-2023-34939-PoC.md third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2023-34939?
CVE-2023-34939 has been scored as a critical severity vulnerability.
How to fix CVE-2023-34939?
To fix CVE-2023-34939, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-34939 being actively exploited in the wild?
It is possible that CVE-2023-34939 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~12% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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