CVE-2024-10924: Really Simple Security’s 2FA Betrayal
On November 6, 2024, Wordfence researcher István Márton disclosed CVE-2024-10924 — a CVSS 9.8 authentication bypass in Really Simple Security, the plugin securing four million WordPress sites, whose two-factor onboarding endpoint failed to validate the requesting user, granting attackers admin sessions on sites with incomplete 2FA enrollment. Patched same-day in 9.1.2, NVD-published November 14, the flaw became 2024's definitive case study in security-plugin risk. This account walks the vulnerable code path, the four-million-site patch sprint, and why the ecosystem's auth surface extends far past WordPress core.