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CVSS: 5.3EPSS: 96%CPEs: 2EXPL: 3

WordPress and WordPress MU before 2.8.1 exhibit different behavior for a failed login attempt depending on whether the user account exists, which allows remote attackers to enumerate valid usernames. NOTE: the vendor reportedly disputes the significance of this issue, indicating that the behavior exists for "user convenience." WordPress y WordPress MU anterior a v2.8.1 expone un comportamiento diferente para un intento fallido de acceso en función de si existe la cuenta de usuario, lo cual permite a atacantes remotos enumerar nombres de usuario válidos. NOTA: el proveedor informa de que cuestiona la importancia de esta incidencia, indicando que el comportamiento existe para conveniencia del usuario. • https://www.exploit-db.com/exploits/17702 http://corelabs.coresecurity.com/index.php?action=view&type=advisory&name=WordPress_Privileges_Unchecked http://securitytracker.com/id?1022528 http://www.exploit-db.com/exploits/9110 http://www.osvdb.org/55713 http://www.securityfocus.com/archive/1/504795/100/0/threaded http://www.securityfocus.com/bid/35581 http://www.vupen.com/english/advisories/2009/1833 https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00597.html https&# • CWE-16: Configuration CWE-204: Observable Response Discrepancy •

CVSS: 6.1EPSS: 0%CPEs: 1EXPL: 1

Open redirect vulnerability in wp-admin/upgrade.php in WordPress, probably 2.6.x, allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the backto parameter. Vulnerabilidad de redirección abierta en wp-admin/upgrade.php en WordPress, probablemente v2.6.x, permite a atacantes remotos redirigir a los usuarios a sitios Web a su elección y llevar a cabo ataques de phishing a través de una URL en el parámetro backto. • http://archives.neohapsis.com/archives/bugtraq/2008-12/0226.html http://osvdb.org/52213 http://www.debian.org/security/2009/dsa-1871 https://exchange.xforce.ibmcloud.com/vulnerabilities/50382 • CWE-59: Improper Link Resolution Before File Access ('Link Following') CWE-601: URL Redirection to Untrusted Site ('Open Redirect') •

CVSS: 10.0EPSS: 0%CPEs: 1EXPL: 1

wp-admin/upgrade.php in WordPress, probably 2.6.x, allows remote attackers to upgrade the application, and possibly cause a denial of service (application outage), via a direct request. wp-admin/upgrade.php en WordPress, probablemente v2.6.x, permite a atacantes remotos actualizar la aplicación, y posiblemente causar una denegación de servicio (caída de la aplicación), a través de una solicitud directa. wp-admin/upgrade.php in WordPress up to and including 2.6.1, allows remote attackers to upgrade the application, and possibly cause a denial of service (application outage), via a direct request if WordPress is not yet setup by creating an empty database, which will prevent future installations from succeeding. • http://archives.neohapsis.com/archives/bugtraq/2008-12/0226.html http://www.debian.org/security/2009/dsa-1871 https://exchange.xforce.ibmcloud.com/vulnerabilities/50384 • CWE-400: Uncontrolled Resource Consumption •

CVSS: 7.2EPSS: 43%CPEs: 74EXPL: 1

Cross-site scripting (XSS) vulnerability in the self_link function in in the RSS Feed Generator (wp-includes/feed.php) for WordPress before 2.6.5 allows remote attackers to inject arbitrary web script or HTML via the Host header (HTTP_HOST variable). Vulnerabilidad de secuencias de comandos en sitios cruzados (XSS) en la función self_link en el RSS Feed Generator (wp-includes/feed.php) para WordPress versiones anteriores a v2.6.5 permite a atacantes remotos inyectar web script o HTML de su elección a través de una cabecera Host (variable HTTP_HOST). • http://osvdb.org/50214 http://secunia.com/advisories/32882 http://secunia.com/advisories/32966 http://securityreason.com/securityalert/4662 http://wordpress.org/development/2008/11/wordpress-265 http://www.securityfocus.com/archive/1/498652 http://www.securityfocus.com/bid/32476 https://exchange.xforce.ibmcloud.com/vulnerabilities/46882 https://www.redhat.com/archives/fedora-package-announce/2008-December/msg00000.html https://www.redhat.com/archives/fedora-package-announce/2008-December/msg00 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •

CVSS: 4.0EPSS: 0%CPEs: 1EXPL: 0

WordPress 2.6.3 relies on the REQUEST superglobal array in certain dangerous situations, which makes it easier for remote attackers to conduct delayed and persistent cross-site request forgery (CSRF) attacks via crafted cookies, as demonstrated by attacks that (1) delete user accounts or (2) cause a denial of service (loss of application access). NOTE: this issue relies on the presence of an independent vulnerability that allows cookie injection. WordPress 2.6.3 se basa en el array superglobal REQUEST en algunas situaciones peligrosas, lo cual facilita a los atacantes remotos a llevar a cabo ataques de falsificación de petición en sitios cruzados tanto persistentes como retardados a través de "cookies" modificadas a mano, como lo demuestran los ataques que (1) eliminan cuentas de usuario o (2) provocan una denegación de servicio (pérdida de acceso a la aplicación). NOTA: Este problema se basa en la presencia de una vulnerabilidad independiente que permite la inyección de cookies. • http://bugs.debian.org/504771 http://openwall.com/lists/oss-security/2008/11/14/1 http://www.debian.org/security/2009/dsa-1871 https://exchange.xforce.ibmcloud.com/vulnerabilities/46698 • CWE-352: Cross-Site Request Forgery (CSRF) •