{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-13400","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","state":"PUBLISHED","assignerShortName":"WPScan","dateReserved":"2026-06-26T08:35:42.471Z","datePublished":"2026-07-27T06:00:03.496Z","dateUpdated":"2026-07-27T13:53:58.533Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","shortName":"WPScan","dateUpdated":"2026-07-27T06:00:03.496Z"},"title":"Simply Schedule Appointments < 1.6.12.4 - Unauthenticated Stored XSS via Booking Customer Information","problemTypes":[{"descriptions":[{"description":"CWE-79 Cross-Site Scripting (XSS)","lang":"en","type":"CWE"}]}],"affected":[{"vendor":"Unknown","product":"Simply Schedule Appointments","versions":[{"status":"affected","versionType":"semver","version":"0","lessThan":"1.6.12.4"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"Simply Schedule Appointments is vulnerable to unauthenticated Stored Cross-Site Scripting in all versions up to and including 1.6.12.2. The root cause is a sanitization-ordering defect: the rendered notification content is decoded back into live HTML after it has already passed through the Simply Schedule Appointments WordPress plugin before 1.6.12.4's wp_kses_post() filter, so a double-encoded payload survives intake and is reintroduced as an executable element at render time."}],"references":[{"url":"https://wpscan.com/vulnerability/501b2929-3216-4587-8124-088fd51becf1/","tags":["exploit","vdb-entry","technical-description"]}],"credits":[{"lang":"en","value":"Revanth Hari Narayana Matte","type":"finder"},{"lang":"en","value":"WPScan","type":"coordinator"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"WPScan CVE Generator"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-79","lang":"en","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}],"metrics":[{"cvssV3_1":{"scope":"CHANGED","version":"3.1","baseScore":6.1,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","integrityImpact":"LOW","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-07-27T13:53:08.821347Z","id":"CVE-2026-13400","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-27T13:53:58.533Z"}}]}}