WordPress Patches Critical Core Vulnerability CVE-2026-87902 Affecting All Versions from 4.7.0
WordPress has released patches for a critical vulnerability in the platform's core code, tracked as CVE-2026-87902 with a CVSS score of 9.2. The flaw impacts every version from 4.7.0 through 7.1.1, meaning virtually all unpatched installations remain exposed. Because the issue resides in the base system rather than plugins or themes, even sites without any extensions installed are at risk. The vulnerability allows an unauthenticated attacker to load arbitrary PHP files from outside theme directories, which can lead to remote code execution on certain server configurations. The bug was privately reported in July by researcher Robert Ressl through HackerOne and disclosed publicly on 22 September, with no confirmed exploitation observed so far. Administrators are urged to apply the updates immediately and keep automatic updates enabled.
BoletimSecSep 23, 2026Translated from Portuguese