CVE-2024-23826

Public Exploit
Uploading an image with a specific filename causes a server-side DoS

Description

spbu_se_site is the website of the Department of System Programming of St. Petersburg State University. Before 2024.01.29, when uploading an avatar image, an authenticated user may intentionally use a large Unicode filename which would lead to a server-side denial of service under Windows. This is due to no limitation of the length of the filename and the costly use of the Unicode normalization with the form NFKD on Windows OS. This vulnerability was fixed in the 2024.01.29 release.

Category

6.8
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.12%
Third-Party Advisory github.com
Affected: spbu-se spbu_se_site
Published at:
Updated at:

References

Link Tags
https://github.com/spbu-se/spbu_se_site/security/advisories/GHSA-5vfc-v7hg-pvwm third party advisory exploit
https://github.com/spbu-se/spbu_se_site/commit/5ad623eb0405260763046343c5785bc588d8a57d patch

Frequently Asked Questions

What is the severity of CVE-2024-23826?
CVE-2024-23826 has been scored as a medium severity vulnerability.
How to fix CVE-2024-23826?
To fix CVE-2024-23826, 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-2024-23826 being actively exploited in the wild?
It is possible that CVE-2024-23826 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-23826?
CVE-2024-23826 affects spbu-se spbu_se_site.
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