{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-71236","assignerOrgId":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","state":"PUBLISHED","assignerShortName":"TuranSec","dateReserved":"2026-08-05T10:53:53.175Z","datePublished":"2026-08-05T10:56:28.138Z","dateUpdated":"2026-08-10T11:45:38.198Z"},"containers":{"cna":{"title":"Grocy - Stored XSS via HTMLPurifier Output Double-Decode","descriptions":[{"lang":"en","value":"Grocy's API request-body parser (controllers/Api/BaseApiController.php, GetParsedAndFilteredRequestBody) purifies incoming field values with HTMLPurifier, then manually reverses HTML-entity encoding of the resulting output by replacing &amp;lt;, &amp;gt;, and &amp;amp; back to <, >, and & immediately after purification.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>Grocy's API request-body parser (controllers/Api/BaseApiController.php, GetParsedAndFilteredRequestBody) purifies incoming field values with HTMLPurifier, then manually reverses HTML-entity encoding of the resulting output by replacing &amp;lt;, &amp;gt;, and &amp;amp; back to <, >, and & immediately after purification.</p>"}]}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-79 Cross-site Scripting","cweId":"CWE-79","type":"CWE"}]}],"affected":[{"vendor":"grocy","product":"grocy","programFiles":["controllers/Api/BaseApiController.php"],"versions":[{"version":"0","status":"affected"}],"defaultStatus":"unknown"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","baseScore":8.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"}}],"references":[{"url":"https://github.com/grocy/grocy","tags":["third-party-advisory"]}],"credits":[{"lang":"en","value":"Bobur Abdugafforov","type":"finder"}],"providerMetadata":{"orgId":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","shortName":"TuranSec","dateUpdated":"2026-08-10T11:45:38.198Z"},"source":{"discovery":"EXTERNAL"},"datePublic":"2026-08-05T10:56:28.138Z"},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-05T12:48:19.387893Z","id":"CVE-2026-71236","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-05T12:51:01.067Z"}}]}}