{"id":"CVE-2026-21451","state":"PUBLISHED","title":"Bagisto has HTML Filter Bypass that Enables Stored XSS","description":"Bagisto is an open source laravel eCommerce platform. A stored Cross-Site Scripting (XSS) vulnerability exists in Bagisto prior to version 2.3.10 within the CMS page editor. Although the platform normally attempts to sanitize `<script>` tags, the filtering can be bypassed by manipulating the raw HTTP POST request before submission. As a result, arbitrary JavaScript can be stored in the CMS content and executed whenever the page is viewed or edited. This exposes administrators to a high-severity risk, including complete account takeover, backend hijacking, and malicious script execution. Version 2.3.10 fixes the issue.","publishedAt":"2026-01-02T20:37:06.795Z","updatedAt":"2026-01-02T21:25:51.523Z","severity":{"score":5.2,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:P","source":"GitHub_M"},"assigner":"GitHub_M","products":["bagisto bagisto"],"affected":[{"vendor":"bagisto","product":"bagisto","versions":[{"version":"< 2.3.10","status":"affected"}]}],"references":["https://github.com/bagisto/bagisto/security/advisories/GHSA-2mwc-h2mg-v6p8"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/21xxx/CVE-2026-21451.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-21451","state":"PUBLISHED","datePublished":"2026-01-02T20:37:06.795Z","dateUpdated":"2026-01-02T21:25:51.523Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-12-29T03:00:29.277Z"},"containers":{"cna":{"title":"Bagisto has HTML Filter Bypass that Enables Stored XSS","descriptions":[{"lang":"en","value":"Bagisto is an open source laravel eCommerce platform. A stored Cross-Site Scripting (XSS) vulnerability exists in Bagisto prior to version 2.3.10 within the CMS page editor. Although the platform normally attempts to sanitize `<script>` tags, the filtering can be bypassed by manipulating the raw HTTP POST request before submission. As a result, arbitrary JavaScript can be stored in the CMS content and executed whenever the page is viewed or edited. This exposes administrators to a high-severity risk, including complete account takeover, backend hijacking, and malicious script execution. Version 2.3.10 fixes the issue."}],"affected":[{"vendor":"bagisto","product":"bagisto","versions":[{"version":"< 2.3.10","status":"affected"}]}],"references":[{"url":"https://github.com/bagisto/bagisto/security/advisories/GHSA-2mwc-h2mg-v6p8","name":"https://github.com/bagisto/bagisto/security/advisories/GHSA-2mwc-h2mg-v6p8","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","subAvailabilityImpact":"NONE","baseScore":5.2,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:P","version":"4.0"}}],"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":"2026-01-02T20:37:06.795Z"},"source":{"advisory":"GHSA-2mwc-h2mg-v6p8","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-02T21:25:42.517622Z","id":"CVE-2026-21451","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":"2026-01-02T21:25:51.523Z"}}]}}}