CVE-2026-27760: falha crítica em OpenCATS
OpenCATS PHP Code Injection via installer AJAX endpoint
Publicada em · Atualizada em
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97Vexday Risk Score
Corrija agora. Ela exploração observada pelo VulnCheck e tem exploit funcional público.
ssvc Actcvss 9.2epss 33%
da publicação à armano mesmo dia
Publicada no NVD28 de abr.
metasploit28 de abr.
VulnCheck+50d
OpenCATS prior to commit 3002a29 contains a PHP code injection vulnerability in the installer AJAX endpoint that allows unauthenticated attackers to execute arbitrary code by injecting PHP statements into the databaseConnectivity action parameter. Attackers can break out of the define() string context in config.php using a single quote and statement separator to inject malicious PHP code that persists and executes on every subsequent page load when the installation wizard remains incomplete.
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Produtos afetados
opencats · OpenCATSPoCs públicas encontradas — 1
cve_referencechocapikk.com/posts/2026/opencats-installer-rce/não verificado⚠ Recursos públicos, para você avaliar a exposição de sistemas que controla ou está autorizado a testar. Teste apenas com autorização.
CVEs relacionadas — OpenCATS
No mesmo produto, das mais perigosas para as menos.
CVE-2026-54453HIGHOpenCATS: Authenticated Remote Code Execution via SettingsUI (manageProfessional)EPSS 0.4%CVE-2026-54454CRITICALOpenCATS: Authenticated RCE in the Import moduleEPSS 0.4%CVE-2026-115513MEDIUMOpenCATS before 0.12.0 Stored XSS via MRU Navigation PanelEPSS 0.3%CVE-2026-112787MEDIUMOpenCATS before 0.10.0 Missing Authorization in Reports Module EEO ReportsEPSS 0.3%CVE-2026-112786MEDIUMOpenCATS before 0.10.0 Missing Authorization via Import Revert ActionEPSS 0.3%CVE-2026-112785MEDIUMOpenCATS before 0.10.0 Missing Authorization in Saved-List AJAX EndpointsEPSS 0.3%
Referências
https://chocapikk.com/posts/2026/opencats-installer-rce/https://github.com/opencats/OpenCATS/blob/46e4727/lib/CATSUtility.php#L142-L172https://github.com/opencats/OpenCATS/blob/46e4727/modules/install/ajax/ui.php#L130https://github.com/opencats/OpenCATS/commit/3002a29f4c3cada1aa2c4f3d4ae4e189906606b6https://github.com/opencats/OpenCATS/pull/706https://www.vulncheck.com/advisories/opencats-php-code-injection-via-installer-ajax-endpoint