CVE Watch14 jul 2026

CVE-2026-39903

Simple Machines Forum 2.1 prior to commit 7d048f8 and 3.0 prior to commit a7875e8 contains an authorization bypass vulnerability in Sources/

CVSS

7.1

Alto

EPSS

0.3%

p26

KEV

—

Exploit Today

0-100

Publicado: 10 jul 2026 · Última mod.: 14 jul 2026 · CWE-863

EPSS · 30d

0.3%EPSS · 30 días0.3%

2026-07-112026-07-21

Descripción técnica

Simple Machines Forum 2.1 prior to commit 7d048f8 and 3.0 prior to commit a7875e8 contains an authorization bypass vulnerability in Sources/Actions/AttachmentApprove.php where a single-character operator error causes the permission check to always pass regardless of user permissions. An authenticated low-privileged user can approve, reject, or delete any pending attachments on any board without holding the required approve_posts permission, bypass moderation queues for their own uploads, and enumerate and delete other users' pending attachments.

Referencias oficiales

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