CVE-2026-86478
In JetBrains YouTrack before 2025.3.161254, 2026.1.14042 improper authentication in YouTrack Helpdesk allowed unauthenticated account takeo
CVSS
9.8
Crítico
EPSS
—
KEV
—
Exploit Today
—
0-100
Publicado: 7 sept 2026 · Última mod.: 7 sept 2026 · CWE-290
Sin historial EPSS suficiente todavía.
In JetBrains YouTrack before 2025.3.161254, 2026.1.14042 improper authentication in YouTrack Helpdesk allowed unauthenticated account takeover via a self-asserted email address
CVECVSSEPSSKEVRExplotTítuloVis.
CVE-2026-84186——
——0Vulnerability involving incorrect access control in the Tools::getRemoteAddr() function in PrestaShop, which allows the client’s IP address to be spoofed via the X-Forwarded-For header when the application is running behind a reverse proxy, load balancer or CDN. The application incorrectly processes the IP address string and uses the address controlled by the visitor rather than the one provided by the trusted infrastructure, allowing an unauthenticated remote attacker to cause the application to interpret their connection as originating from an arbitrary IP address. This condition allows IP-based controls, such as the maintenance mode allowlist, to be bypassed, as well as enabling the forgery of security and audit logs and the evasion of third-party mechanisms that rely on the IP address, such as geolocation checks, fraud detection or request throttling.14hCVE-2026-86196—17.2%
——5Grav API plugin versions before 1.0.20 build password reset links from the untrusted Host header in the forgot-password endpoint, allowing unauthenticated attackers to redirect reset tokens to attacker-controlled domains. Attackers can send password reset requests for any account with a malicious Host header, intercept the reset token from victim emails, and complete account takeover including super-admin accounts.2dCVE-2026-854328.2 ALT20.8%
——6MOOS core-moos through 10.4.0 fails to validate client identity in MOOSDB message processing, allowing authenticated attackers to attribute writes to other clients by supplying arbitrary source identifiers in serialized messages. Attackers can forge message origins and cancel third-party subscriptions by exploiting the disconnect between authenticated connection identity and wire-supplied source attribution.3dCVE-2026-848496.5 MED6.9%
——2Unauthenticated Bypass Vulnerability in Pre-Orders for WooCommerce <= 2.3 versions.4dCVE-2026-847665.9 MED9.8%
——3Unauthenticated Bypass Vulnerability in FluentBooking Pro <= 2.2.1 versions.3dCVE-2026-82180—12.7%
——4In Eclipse Arrowhead versions from 5.0.0 to 5.2.1 when the MQTT API is enabled with the certificate authentication policy, CertificateMqttFilter parses an X.509 certificate that the client sends inside the MQTT message payload (the authentication field of MqttRequestTemplate) and treats its Subject DN as the authenticated identity. The certificate is decoded with CertificateFactory.generateCertificate() but its signature is never verified and its issuer chain is never validated against any trust store. Authorisation is reduced to two string comparisons on attacker-supplied data: the DN-qualifier must equal "sy" or "op", and the cloud-name part of the CN must match the server's. Both values are public (the cloud name is in the server's own TLS certificate). An attacker who can publish to the MQTT broker can therefore mint a self-signed certificate with CN=Sysop.<cloud>.<org>.arrowhead.eu, dnQualifier=op, send it as the authentication field, and be authenticated as the cloud's system operator with isSysOp == true. This passes the downstream ManagementServiceMqttFilter (request.isSysOp() → allowed) and gives full management access over MQTT. The HTTP CertificateFilter is not affected — it reads the certificate from jakarta.servlet.request.X509Certificate, which Tomcat populates only after a successful mTLS handshake against the configured trust store.4d