CVE-2026-88798
Medium
Description
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.
SeverityMedium
CVSS5.3
Exploit probability—
ProductReally Simple Security
PublishedSep 18, 2026
First seenSep 18, 2026
Weakness typeCWE-400Uncontrolled resource consumption
How to fix
Update
- Really Simple Security9.8.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Really Simple Security | 8.1.6 ≤ v < 9.8.3 | 9.8.3 |
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