CVE-2024-23826 MEDIUM

CVE-2024-23826: Uploading an image with a specific filename causes a server-side DoS

Vendor Spbu-Se
Product spbu_se_site
Weakness CWE-770 · Uncontrolled resource consumption
Published January 29, 2024
Last update June 2, 2025
View on NVD All CVEs

CVSS base score

6.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

January 29, 2024 CVE published
June 2, 2025 Record updated