CVE-2026-88798 — Really Simple Security (Free) < 9.8.3 - Unauthenticated Unbounded Option Growth via Spoofed Client IP Header
The Really Simple Security WordPress plugin before 9.8.3 does not validate a client-supplied address value before using it as a storage key in one of its own options, allowing …
Published: 2026-09-18 · CVSS: 5.3 · CVSS 3.1
The Really Simple Security WordPress plugin before 9.8.3 does not validate a client-supplied address value before using it as a storage key in one of its own options, allowing unauthenticated attackers to grow that option without bound and to slow the site's handling of missing pages.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7