{"id":"CVE-2026-48527","state":"PUBLISHED","title":"HaxCMS has a stored Cross-Site Scripting (XSS) bypass in saveNode endpoint","description":"HAX CMS helps manage microsite universe with PHP or NodeJs backends. Versions up to and including 26.0.0 are affected by a stored cross-site scripting (XSS) vulnerability in the `/system/api/saveNode` endpoint. An authenticated user with a permission to edit pages can bypass the HTML sanitizer by injecting an event handler attribute without whitespace before the attribute name. @haxtheweb/haxcms-nodejs 26.0.1 and haxcms-php 26.0.2 patch the issue.","publishedAt":"2026-05-29T12:26:07.972Z","updatedAt":"2026-05-29T13:02:50.194Z","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":"GitHub_M"},"assigner":"GitHub_M","products":["haxtheweb haxcms-nodejs","haxtheweb haxcms-php"],"affected":[{"vendor":"haxtheweb","product":"haxcms-nodejs","versions":[{"version":"< 26.0.1","status":"affected"}]},{"vendor":"haxtheweb","product":"haxcms-php","versions":[{"version":"< 26.0.2","status":"affected"}]}],"references":["https://github.com/haxtheweb/issues/security/advisories/GHSA-g2g8-95qg-v35h"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/48xxx/CVE-2026-48527.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-48527","state":"PUBLISHED","datePublished":"2026-05-29T12:26:07.972Z","dateUpdated":"2026-05-29T13:02:50.194Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-21T16:18:10.619Z"},"containers":{"cna":{"title":"HaxCMS has a stored Cross-Site Scripting (XSS) bypass in saveNode endpoint","descriptions":[{"lang":"en","value":"HAX CMS helps manage microsite universe with PHP or NodeJs backends. Versions up to and including 26.0.0 are affected by a stored cross-site scripting (XSS) vulnerability in the `/system/api/saveNode` endpoint. An authenticated user with a permission to edit pages can bypass the HTML sanitizer by injecting an event handler attribute without whitespace before the attribute name. @haxtheweb/haxcms-nodejs 26.0.1 and haxcms-php 26.0.2 patch the issue."}],"affected":[{"vendor":"haxtheweb","product":"haxcms-nodejs","versions":[{"version":"< 26.0.1","status":"affected"}]},{"vendor":"haxtheweb","product":"haxcms-php","versions":[{"version":"< 26.0.2","status":"affected"}]}],"references":[{"url":"https://github.com/haxtheweb/issues/security/advisories/GHSA-g2g8-95qg-v35h","name":"https://github.com/haxtheweb/issues/security/advisories/GHSA-g2g8-95qg-v35h","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/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":"2026-05-29T12:26:07.972Z"},"source":{"advisory":"GHSA-g2g8-95qg-v35h","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/haxtheweb/issues/security/advisories/GHSA-g2g8-95qg-v35h","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-29T13:02:45.553797Z","id":"CVE-2026-48527","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-29T13:02:50.194Z"}}]}}}