{"id":"CVE-2026-116763","revision":null,"records":[{"revision":"f4c377b0d0b646b6b980c8d1ca7d6cc9","observedAt":"2026-10-29T12:12:12.337+00:00","statement":{"source":"cve-program","id":"CVE-2026-116763","aliases":[],"title":"LiteSpeed Cache <= 7.9.1 - Unauthenticated Stored Cross-Site Scripting via HTML Minifier Predictable Placeholder (md5(REQUEST_TIME) + two-pass str_replace)","description":"The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 7.9.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This vulnerability is only exploitable when the HTML Minify option (O_OPTM_HTML_MIN) is enabled and a companion plugin renders stored comment content into a raw-text context such as a JSON-LD script block on the same page.","state":0,"publishedAt":"2026-10-29T09:25:36.034+00:00","modifiedAt":"2026-10-29T10:45:40.785+00:00","affected":[{"ecosystem":"Vendor product","name":"LiteSpeed Cache","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"litespeedtech\",\n                    \"product\": \"LiteSpeed Cache\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"7.9.1\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N","score":5.4,"severity":"MEDIUM"}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/99f876e0-8f13-468b-b5fa-ca61e3cf57b4?source=cve","https://plugins.trac.wordpress.org/browser/litespeed-cache/tags/7.9.1/lib/html-min.cls.php#L103","https://plugins.trac.wordpress.org/browser/litespeed-cache/tags/7.9.1/src/optimize.cls.php#L525","https://plugins.trac.wordpress.org/browser/litespeed-cache/tags/7.9.1/lib/html-min.cls.php#L173","https://plugins.trac.wordpress.org/browser/litespeed-cache/tags/7.9.1/lib/html-min.cls.php#L205","https://plugins.trac.wordpress.org/browser/litespeed-cache/tags/7.9.1/src/optimizer.cls.php#L57","https://plugins.trac.wordpress.org/changeset?reponame=&old=3757253%40litespeed-cache&new=3757253%40litespeed-cache"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116763","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-116763","identifiers":["CVE-2026-116763"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EPSS backfill.","generation":"2026-11-07T08:26:54.7587124+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-07T08:26:54.7587124+00:00","lastSuccessAt":"2026-11-07T08:26:54.9369587+00:00","error":null,"lastVerifiedAt":"2026-11-07T08:26:54.9369591+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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