{"id":"CVE-2026-71236","state":"PUBLISHED","title":"Grocy - Stored XSS via HTMLPurifier Output Double-Decode","description":"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.","publishedAt":"2026-08-05T10:56:28.138Z","updatedAt":"2026-08-10T11:45:38.198Z","severity":{"score":8.7,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","source":"TuranSec"},"assigner":"TuranSec","products":["grocy grocy"],"affected":[{"vendor":"grocy","product":"grocy","defaultStatus":"unknown","versions":[{"version":"0","status":"affected"}],"programFiles":["controllers/Api/BaseApiController.php"]}],"references":["https://github.com/grocy/grocy"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/71xxx/CVE-2026-71236.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-71236","state":"PUBLISHED","datePublished":"2026-08-05T10:56:28.138Z","dateUpdated":"2026-08-10T11:45:38.198Z","assignerShortName":"TuranSec","assignerOrgId":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","dateReserved":"2026-08-05T10:53:53.175Z"},"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."}],"affected":[{"vendor":"grocy","product":"grocy","defaultStatus":"unknown","versions":[{"version":"0","status":"affected"}],"programFiles":["controllers/Api/BaseApiController.php"]}],"references":[{"url":"https://github.com/grocy/grocy","tags":["third-party-advisory"]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79 Cross-site Scripting","type":"CWE"}]}],"providerMetadata":{"shortName":"TuranSec","orgId":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","dateUpdated":"2026-08-10T11:45:38.198Z"},"credits":[{"lang":"en","value":"Bobur Abdugafforov","type":"finder"}],"source":{"discovery":"EXTERNAL"},"datePublic":"2026-08-05T10:56:28.138Z"},"adp":[{"title":"CISA ADP Vulnrichment","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"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-05T12:51:01.067Z"}}]}}}