CVE-2024-23790: Missing file type check in avatar picture upload

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-01-29 · updated 2026-06-17
Weakness: CWE-20

Description

Improper Input Validation vulnerability in the upload functionality for user avatars allows functionality misuse due to missing check of filetypes. This issue affects OTRS: from 7.0.X through 7.0.48, from 8.0.X through 8.0.37, from 2023 through 2023.1.1.

Affected products

OTRS AG OTRS: from 7.0.0 before 7.0.49; from 8.0.0 before 2024.1.1 — fixed in 2024.1.1, 7.0.49

How to fix

Upgrade to a fixed version: OTRS AG OTRS 2024.1.1, 7.0.49. Check the vendor advisory for mitigations.

References

https://otrs.com/release-notes/otrs-security-advisory-2024-01/
https://otrs.com/release-notes/otrs-security-advisory-2024-01/

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