{"id":"CVE-2026-88798","title":"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 …","summary":"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 …","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","cwe":["CWE-400"],"product":"Really Simple Security","affected":["really_simple_security >= 8.1.6 < 9.8.3"],"published":"2026-09-18","updated":"2026-09-18","sourceUpdated":"2026-09-18T19:08:32.830","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-88798","references":[{"url":"https://wpscan.com/vulnerability/e658dcd2-2ff6-4611-a28d-e2482c65be8b/","label":"contact@wpscan.com"}],"tags":["nvd","cve.org"],"epss":0.00248,"epssPercentile":0.16439,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-18T11:02:21.267727Z"},"ingestedAt":"2026-09-18T06:36:37.986Z","slug":"CVE-2026-88798","body":"## Overview\n\nThe 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":206753,"id":"CVE-2026-88798","ts":1789731638990,"field":"cvss","old":null,"new":"5.3"},{"seq":206752,"id":"CVE-2026-88798","ts":1789731638990,"field":"severity","old":"none","new":"medium"}]}