EUVD Vulnerability Catalog
Actively Exploited (KEV)
EUVD-2026-90080
Severity: HIGH
Base Score: 8.7
CVSS Version: 4.0
Vulnerability Description
Zammad versions 6.3.0 to 6.5.4 are vulnerable a session hijack vulnerability that leads to remote code execution as the zammad user. The vulnerability is also present in version 7.0.0 to version 7.1.3, but not exploitable due to environment conditions.
CVSS Vector Analysis
Below is the complete, human-readable breakdown of the CVSS metric string: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:A/AU:Y/V:C
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Attack Vector (AV): Network
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Attack Complexity (AC): Low
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Attack Requirements (AT): None
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Privileges Required (PR): None
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User Interaction (UI): Passive
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Vulnerability Confidentiality Impact (VC): High
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Vulnerability Integrity Impact (VI): High
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Vulnerability Availability Impact (VA): High
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Subsequent Confidentiality Impact (SC): Low
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Subsequent Integrity Impact (SI): Low
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Subsequent Availability Impact (SA): Low
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E: Adjacent
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AU: Y
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V: Changed
Affected Vendors & Systems
Vendor
Zammad GmbH
References & Advisory Links
Metadata Profile
Database Authority
European Union Agency for Cybersecurity (ENISA) EUVD
Assigner
DIVD
EPSS Probability
0
Known Aliases
GHSA-xmw5-m2wg-4243
CVE-2026-102489
Published On
2026-09-30
Last Updated
2026-09-30
Exploited Since
2026-09-30