CVE-2026-55573: fallo crítico en e107inc e107
e107: Unsafe deserialization in install.php allows unauthenticated RCE via POP chain
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
28Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 9.8epss 0.7%
e107 is a content management system (CMS). Prior to 2.3.7, install.php decodes the attacker-controlled previous_steps POST parameter and passes it to unserialize() at file scope and again in the e_install constructor without restricting allowed classes. The installer remains accessible after a normal installation, and a crafted object graph using the bundled GuzzleHttp\Psr7\PumpStream class can flow through paths.hash into site_path, where string coercion invokes an attacker-controlled callable. An unauthenticated attacker who can reach install.php can therefore execute arbitrary PHP functions with the web server process's privileges, leading to full server compromise. This issue is fixed in version 2.3.7.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Productos afectados
e107inc · e107CVEs relacionadas — e107inc e107
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-48997HIGHe107: Command Injection via shell expansion in ImageMagick resize destination pathEPSS 0.9%CVE-2026-55572CRITICALe107: SQL injection in alt_auth plugin (otherdb / e107db backends) via login usernameEPSS 0.5%CVE-2026-57859HIGHe107 Second-Order Code Execution via eval()-Based Deserialization in e_array::unserialize()EPSS 0.5%CVE-2026-43935HIGHe107: Host Header Injection in e107 password reset enables phishingEPSS 0.3%CVE-2026-114407MEDIUMe107 CMS before 2.3.13 Reflected XSS via search.php author ParameterEPSS 0.3%CVE-2026-43936MEDIUMe107: Server-Side Request Forgery (SSRF) in the remote file fetcherEPSS 0.2%