{"id":"CVE-2026-33742","state":"PUBLISHED","title":"Invoice Ninja has Stored XSS via Markdown HTML Injection in Product Notes","description":"Invoice Ninja is a source-available invoice, quote, project and time-tracking app built with Laravel. Product notes fields in Invoice Ninja v5.13.0 allow raw HTML via Markdown rendering, enabling stored XSS. The Markdown parser output was not sanitized with `purify::clean()` before being included in invoice templates. This is fixed in v5.13.4 by the vendor by adding `purify::clean()` to sanitize Markdown output.","publishedAt":"2026-03-26T20:50:21.984Z","updatedAt":"2026-03-27T13:55:25.963Z","severity":{"score":5.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["invoiceninja invoiceninja"],"affected":[{"vendor":"invoiceninja","product":"invoiceninja","versions":[{"version":"< 5.13.4","status":"affected"}]}],"references":["https://github.com/invoiceninja/invoiceninja/security/advisories/GHSA-xph7-9749-56mh","https://github.com/invoiceninja/invoiceninja/releases/tag/v5.13.4"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/33xxx/CVE-2026-33742.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33742","state":"PUBLISHED","datePublished":"2026-03-26T20:50:21.984Z","dateUpdated":"2026-03-27T13:55:25.963Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-23T17:34:57.561Z"},"containers":{"cna":{"title":"Invoice Ninja has Stored XSS via Markdown HTML Injection in Product Notes","descriptions":[{"lang":"en","value":"Invoice Ninja is a source-available invoice, quote, project and time-tracking app built with Laravel. Product notes fields in Invoice Ninja v5.13.0 allow raw HTML via Markdown rendering, enabling stored XSS. The Markdown parser output was not sanitized with `purify::clean()` before being included in invoice templates. This is fixed in v5.13.4 by the vendor by adding `purify::clean()` to sanitize Markdown output."}],"affected":[{"vendor":"invoiceninja","product":"invoiceninja","versions":[{"version":"< 5.13.4","status":"affected"}]}],"references":[{"url":"https://github.com/invoiceninja/invoiceninja/security/advisories/GHSA-xph7-9749-56mh","name":"https://github.com/invoiceninja/invoiceninja/security/advisories/GHSA-xph7-9749-56mh","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/invoiceninja/invoiceninja/releases/tag/v5.13.4","name":"https://github.com/invoiceninja/invoiceninja/releases/tag/v5.13.4","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-26T20:50:21.984Z"},"source":{"advisory":"GHSA-xph7-9749-56mh","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/invoiceninja/invoiceninja/security/advisories/GHSA-xph7-9749-56mh","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-27T13:33:33.494289Z","id":"CVE-2026-33742","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-27T13:55:25.963Z"}}]}}}