What’s Vulnerable › Vulnerabilities

CVE-2023-38059: External pictures can be loaded even if not allowed by configuration

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-16 · updated 2026-06-17
• Weakness: CWE-200

Description

The loading of external images is not blocked, even if configured, if the attacker uses protocol-relative URL in the payload. This can be used to retreive the IP of the user.This issue affects OTRS: from 7.0.X before 7.0.47, from 8.0.X before 8.0.37; ((OTRS)) Community Edition: from 6.0.X through 6.0.34.

Affected products

• OTRS AG OTRS: from 6.0.0 through 6.0.34; from 7.0.0 before 7.0.47; from 8.0.0 before 8.0.37 — fixed in 7.0.47, 8.0.37

How to fix

Upgrade to a fixed version: OTRS AG OTRS 7.0.47, 8.0.37. Check the vendor advisory for mitigations.

References

• https://otrs.com/release-notes/otrs-security-advisory-2023-08/
• https://otrs.com/release-notes/otrs-security-advisory-2023-08/

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