XenForo < 2.3.13 SSRF via PayPal REST Webhook Handler
41Vexday Risk Score
Sin señal de explotación. Ella tiene prueba de concepto pública.
ssvc Attendcvss 7.7epss 0.3%
probabilidad de explotación
0.3%top 80% de las CVE
explotación observada
noninguna fuente lo reporta
1 exploit(s) público(s)
XenForo before 2.3.13 contains a server-side request forgery vulnerability in the PayPal REST webhook handler that allows unauthenticated attackers to cause the server to make outbound HTTP requests to arbitrary destinations by supplying a crafted certificate URL in webhook headers without scheme, hostname, or allowlist validation. Attackers can submit a crafted POST to the PayPal webhook callback endpoint to reach internal network resources including cloud instance metadata services, potentially disclosing IAM credentials or enabling secondary internal service exploitation.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
Productos afectados
XenForo · XenForoPoCs públicas encontradas — 1
cve_referencegithub.com/BomboBombone/CVE-2026-73315★ 0⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.
Referencias
https://bombobombone.github.io/posts/cve-2026-73315/https://github.com/BomboBombone/CVE-2026-73315https://www.vulncheck.com/advisories/xenforo-ssrf-via-paypal-rest-webhook-handlerhttps://xenforo.com/community/threads/security-fixes-released-for-all-xenforo-and-media-gallery-versions-2-2-0-2-3-12.239856/https://xenforo.com/community/threads/xenforo-2-3-13-and-add-ons-released-includes-security-fixes.239857/