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{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Vulnerabilidad de deserializaci\u00f3n de datos no confiables en ThemeREX Tennis Club tennis-sportclub permite la inyecci\u00f3n de objetos. Este problema afecta a Tennis Club: desde n/a hasta &lt;= 1.2.3."}], "id": "CVE-2026-27437", "lastModified": "2026-04-22T21:26:58.303", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2026-03-05T06:16:29.497", "references": [{"source": "audit@patchstack.com", "url": "https://patchstack.com/database/Wordpress/Theme/tennis-sportclub/vulnerability/wordpress-tennis-club-theme-1-2-3-php-object-injection-vulnerability?_s_id=cve"}], "sourceIdentifier": "audit@patchstack.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-502"}], "source": "audit@patchstack.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.2.3]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Tennis Club", "source": "cna", "vendor": "ThemeREX"}, "product": "tennis_club", "vendor": "themerex"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": null}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "wordpress", "vendor": "wordpress"}], "analysis": {"en": {"generated_at": "2026-04-15T23:29:23.696499+00:00", "value": {"mitigation_remediation": ["Upgrade the Tennis Club theme to version 1.2.4 or later, if a patch is available, or replace the theme with a secure alternative.", "If an upgrade is not possible, deactivate or uninstall the theme and any plugins that rely on it until a fix can be applied.", "Restrict or sanitize any inputs that trigger deserialization, such as disabling import options, and ensure that only trusted users can access these features."], "summary": {"action": "Apply Patch", "impact": "PHP Object Injection"}, "threat_synthesis": {"affected_systems": "The vulnerability affects ThemeREX's Tennis Club WordPress theme versions up to and including 1.2.3. Websites that have installed this theme and have not applied a newer patch are at risk.", "description_and_impact": "Deserialization of untrusted data in the WordPress Tennis Club theme enables PHP Object Injection, a vulnerability that can allow an attacker to execute arbitrary code, modify or delete data, and potentially take full control of the affected server. This weakness corresponds to CWE\u2011502 and carries a CVSS score of 9.8, indicating critical severity. The flaw arises when the theme processes serialized input without proper validation, giving an attacker the opportunity to inject malicious objects.", "risk_and_exploitability": "The attack vector is likely through any input path provided by the theme that accepts serialized data, such as importing settings or using the theme\u2019s widget options. Exploit requires crafting a malicious serialized payload which the theme then blindly deserializes. Although the EPSS score is below 1\u202f% and the issue is not listed in the CISA KEV catalog, the high CVSS score and the nature of object injection make it a high\u2011risk vulnerability for exposed websites, warranting urgent attention."}}}}, "created": "2026-03-06T15:12:00.804265+00:00", "updated": "2026-04-15T23:30:17.206357+00:00", "vendors": ["themerex", "themerex$PRODUCT$tennis_club", "wordpress", "wordpress$PRODUCT$wordpress"]}