What’s Vulnerable › Vulnerabilities

CVE-2023-38060: Host header injection by attachments in web service

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-07-24 · updated 2026-06-17
• Weakness: CWE-20

Description

Improper Input Validation vulnerability in the ContentType parameter for attachments on TicketCreate or TicketUpdate operations of the OTRS Generic Interface modules allows any authenticated attacker to to perform an host header injection for the ContentType header of the attachment.  This issue affects OTRS: from 7.0.X before 7.0.45, from 8.0.X before 8.0.35; ((OTRS)) Community Edition: from 6.0.1 through 6.0.34.

Affected products

• OTRS AG OTRS: from 6.0.1 through 6.0.34; from 7.0.0 before 7.0.45; from 8.0.0 before 8.0.35 — fixed in 7.0.45, 8.0.35

How to fix

Upgrade to a fixed version: OTRS AG OTRS 7.0.45, 8.0.35. Check the vendor advisory for mitigations.

References

• https://lists.debian.org/debian-lts-announce/2023/08/msg00040.html
• https://otrs.com/release-notes/otrs-security-advisory-2023-04/
• https://lists.debian.org/debian-lts-announce/2023/08/msg00040.html
• https://otrs.com/release-notes/otrs-security-advisory-2023-04/

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