CVE-2026-48211 OTRS GmbH (former OTRS AG) CVE debrief

Who should care

OTRS administrators, security teams, and IT personnel responsible for managing OTRS instances should assess exposure and prioritize remediation. Affected operators and platforms require review. Vulnerability management and security teams should verify OTRS versions and configurations, review Import/Export template settings, and apply vendor patches or workarounds.

Why it matters

CVE-2026-48211 is a Cross-Site Request Forgery (CSRF) vulnerability in OTRS Import/Export Admin console that allows an unauthenticated remote attacker to delete administrative Import/Export templates with the privileges of an active administrator session. OTRS administrators and security teams should verify exposure, review configurations, and prioritize patching or workarounds.

• Potential deletion of administrative Import/Export templates
• Possible disruption to OTRS administrative operations
• Need for verification of OTRS versions and configurations
• Priority for applying vendor patches or workarounds

Technical summary

The OTRS AdminImportExport::TemplateDelete action does not validate the request's ChallengeToken, allowing an unauthenticated remote attacker to craft a malicious request that is executed with the privileges of an active administrator session. This issue affects OTRS versions 7.0.X, 8.0.X, 2023.X, 2024.X, 2025.X, and 2026.X before 2026.7.X. OTRS Community Edition 6.x and before are also vulnerable. Products based on OTRS Community Edition are likely affected. Technical impact includes potential deletion of administrative Import/Export templates and disruption to OTRS administrative operations.

Defensive priority

OTRS administrators and security teams should prioritize verifying exposure, reviewing and adjusting Import/Export template configurations, and applying vendor patches or workarounds.

Recommended defensive actions

• Verify exposure by reviewing OTRS versions and configurations
• Review and adjust Import/Export template configurations
• Apply vendor patches or workarounds
• Monitor for suspicious activity
• Review compensating controls for exposed systems
• Track exceptions and retest remediated assets
• Check relevant monitoring, detection, and logs

Evidence notes

The CVE record and source item provide details on the CSRF vulnerability in OTRS Import/Export Admin console. The vendor, OTRS GmbH (former OTRS AG), has provided a security advisory. Evidence is limited to public CVE Program and NVD records. Defenders should verify OTRS versions, configurations, and Import/Export template settings. Limited source detail suggests explicit evidence limits.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.