{"id":"CVE-2026-45270","state":"PUBLISHED","title":"CI4MS: Stored XSS in Pages Module Content via Broken html_purify Validation Rule","description":"CI4MS is a CodeIgniter 4-based content management system skeleton. Prior to version 0.31.9.0, the `Pages` backend module registers the `html_purify` validation rule on language-keyed page content but persists the raw, un-purified POST value into the database. The public renderer for pages (`Home::index()` → `app/Views/templates/default/pages.php`) emits `$pageInfo->content` without `esc()`, yielding stored XSS that fires for every public visitor of the affected page — including administrators. Because pages may be promoted to the site home page, the payload can be served at `/` and reach every visitor of the site. Version 0.31.9.0 patches the issue.","publishedAt":"2026-07-20T14:12:13.093Z","updatedAt":"2026-07-20T15:11:27.452Z","severity":{"score":8.7,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["ci4-cms-erp ci4ms"],"affected":[{"vendor":"ci4-cms-erp","product":"ci4ms","versions":[{"version":"< 0.31.9.0","status":"affected"}]}],"references":["https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-gqr2-7hcg-rchf","https://github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.9.0"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/45xxx/CVE-2026-45270.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45270","state":"PUBLISHED","datePublished":"2026-07-20T14:12:13.093Z","dateUpdated":"2026-07-20T15:11:27.452Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-11T18:41:13.156Z"},"containers":{"cna":{"title":"CI4MS: Stored XSS in Pages Module Content via Broken html_purify Validation Rule","descriptions":[{"lang":"en","value":"CI4MS is a CodeIgniter 4-based content management system skeleton. Prior to version 0.31.9.0, the `Pages` backend module registers the `html_purify` validation rule on language-keyed page content but persists the raw, un-purified POST value into the database. The public renderer for pages (`Home::index()` → `app/Views/templates/default/pages.php`) emits `$pageInfo->content` without `esc()`, yielding stored XSS that fires for every public visitor of the affected page — including administrators. Because pages may be promoted to the site home page, the payload can be served at `/` and reach every visitor of the site. Version 0.31.9.0 patches the issue."}],"affected":[{"vendor":"ci4-cms-erp","product":"ci4ms","versions":[{"version":"< 0.31.9.0","status":"affected"}]}],"references":[{"url":"https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-gqr2-7hcg-rchf","name":"https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-gqr2-7hcg-rchf","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.9.0","name":"https://github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.9.0","tags":["x_refsource_MISC"]}],"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":"2026-07-20T14:12:13.093Z"},"source":{"advisory":"GHSA-gqr2-7hcg-rchf","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-gqr2-7hcg-rchf","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-20T15:11:07.422358Z","id":"CVE-2026-45270","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":"2026-07-20T15:11:27.452Z"}}]}}}