ThemeREX Tennis Club CVE-2026-27437
CRITICALSeverity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionCVE.org
Deserialization of Untrusted Data vulnerability in ThemeREX Tennis Club tennis-sportclub allows Object Injection.This issue affects Tennis Club: from n/a through <= 1.2.3.
AnalysisAI
Deserialization of untrusted data in Tennis Club (tennis-sportclub) WordPress theme allows PHP Object Injection, potentially enabling remote code execution through POP chains.
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Tennis Club plugin version <= 1.2.3 installed and activated. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 9.8. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Attacker submits serialized PHP payload through tennis-sportclub theme, triggering Object Injection that chains to file write or code execution via available POP gadgets. |
| Remediation | Update the theme. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Audit all systems running Tennis Club plugin and document affected instances; immediately disable the plugin if business operations permit. …
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