PT-2026-58809 · Simple Machines · Smf

Hamed Kohi + 1 · Publicado 2026-07-14 · Atualizado 2026-07-14 · CVE-2026-61520

NVD

CVSS v3.1

7.7

Alta

Vetor base

AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Simple Machines Forum 2.1 prior to commit 4bf35cf and 3.0 prior to commit b4d23df contains a server-side request forgery vulnerability in the image proxy that allows authenticated attackers to trigger internal HTTP requests by embedding attacker-controlled URLs in BBCode image tags, which the proxy fetches without validating resolved destination IPs against private address ranges, loopback, or link-local addresses. Attackers can leverage SMF's automatic HMAC signature generation for any embedded image URL to obtain valid signed proxy requests targeting internal services such as cloud instance metadata endpoints, internal web applications, and container network services.

Correção

SSRF

Enumeração de Fraquezas

CWE-918

Identificadores relacionados

CVE-2026-61520

Produtos afetados

Smf

Referências · 4

• https://github.com/SimpleMachines/SMF/commit/4bf35cf9e45573a5f55a6f52995086c1da89c096 · Correção
• https://github.com/SimpleMachines/SMF/commit/b4d23dfd74a511587c605f9d294cefc3a75b4b26 · Correção
• https://nvd.nist.gov/vuln/detail/CVE-2026-61520 · Nota de Segurança
• https://vulncheck.com/advisories/simple-machines-forum-ssrf-via-image-proxy · Nota