{"id":"CVE-2026-104252","revision":"00fd5007c2814bf397fc50878e777775","records":[{"revision":"00fd5007c2814bf397fc50878e777775","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-104252","aliases":[],"title":"Vitess vttablet /twopcz reflected XSS","description":"Vitess is a database clustering system for horizontal scaling of MySQL. Prior to 23.0.5 and 24.0.2, twopczHandler in go/vt/vttablet/tabletserver/twopcz.go writes the Action and dtid form values from the vttablet and vtcombo /twopcz HTTP debug endpoint into a text/html response without HTML escaping. Under the default allow-all ACL policy, a remote unauthenticated attacker can send an operator a crafted request that executes script in the operator's browser after the request is opened. The script runs with the vttablet debug origin and can read same-origin diagnostic endpoints that expose query, transaction, environment, variable, or profiling data available in that deployment. This issue is fixed in versions 23.0.5 and 24.0.2.","state":0,"publishedAt":"2026-10-13T19:22:58.208+00:00","modifiedAt":"2026-10-15T15:11:35.194+00:00","affected":[{"ecosystem":"Vendor product","name":"vitess","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"vitessio\",\n                    \"product\": \"vitess\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 23.0.5\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 24.0.0, < 24.0.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://github.com/vitessio/vitess/security/advisories/GHSA-v75v-6fpf-gvw8","https://github.com/vitessio/vitess/pull/20255","https://github.com/vitessio/vitess/pull/20273","https://github.com/vitessio/vitess/pull/20274","https://github.com/vitessio/vitess/commit/3140c1846cd120db34f33b2083139b4ab638aed2","https://github.com/vitessio/vitess/commit/976e1e0d78f9d29d02e5e31b4aa7e180648f08af","https://github.com/vitessio/vitess/commit/c1ed96302e658190168c971afdac730cf70e43f7","https://github.com/vitessio/vitess/releases/tag/v23.0.5","https://github.com/vitessio/vitess/releases/tag/v24.0.2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-104252","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-104252","identifiers":["CVE-2026-104252"]},"retained":false,"historicalAffected":[]}],"coverage":[]}