{"id":"CVE-2026-121733","aliases":["EUVD-2026-116591","GHSA-j38w-r3vf-5255"],"status":"published","title":"Bagisto before 2.4.5 Stored XSS via RMA Conversation Attachment Upload","description":"Bagisto before 2.4.5 contains a stored cross-site scripting vulnerability that allows authenticated customers to upload HTML files via the RMA send-message endpoint without type or extension validation. Attackers can upload a .html attachment containing JavaScript served under /storage/rma-conversation/, executing script in the shop's origin when an administrator opens it.","severity":{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00182,"percentile":0.07816,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2026-11-03T22:55:37Z","modified":"2026-11-04T18:58:11Z","products":[{"vendor":"webkul","product":"bagisto"}],"references":[{"url":"https://github.com/bagisto/bagisto/commit/204e43c26705b66ef2ddfb2a9eebb25f5e8f6a2c","tags":["patch","fix"]},{"url":"https://github.com/bagisto/bagisto","tags":["product","package"]},{"url":"https://github.com/bagisto/bagisto/commit/e28db3e8c53a94a99cf153ac338466720acd9004","tags":["patch","fix"]},{"url":"https://github.com/bagisto/bagisto/blob/v2.4.4/packages/Webkul/Shop/src/Http/Controllers/Customer/Account/RMAController.php#L408","tags":["technical-description","article"]},{"url":"https://github.com/bagisto/bagisto/releases/tag/v2.4.5","tags":["release-notes","advisory"]},{"url":"https://www.vulncheck.com/advisories/bagisto-before-2.4.5-stored-xss-via-rma-conversation-attachment-upload","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121733","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-j38w-r3vf-5255"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/121xxx/CVE-2026-121733.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-121733","title":"Bagisto before 2.4.5 Stored XSS via RMA Conversation Attachment Upload","description":"Bagisto before 2.4.5 contains a stored cross-site scripting vulnerability that allows authenticated customers to upload HTML files via the RMA send-message endpoint without type or extension validation. Attackers can upload a .html attachment containing JavaScript served under /storage/rma-conversation/, executing script in the shop's origin when an administrator opens it.","status":"published","published":"2026-11-03T22:55:37.881Z","modified":"2026-11-04T18:58:11.067Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low","assessor":"cna"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-434"],"updated_at":"2026-11-04T19:37:11.952963Z"}],"euvd":[{"id":"EUVD-2026-116591","description":"Bagisto before 2.4.5 contains a stored cross-site scripting vulnerability that allows authenticated customers to upload HTML files via the RMA send-message endpoint without type or extension validation. Attackers can upload a .html attachment containing JavaScript served under /storage/rma-conversation/, executing script in the shop's origin when an administrator opens it.","status":"published","published":"2026-11-03T22:55:37Z","modified":"2026-11-04T18:58:11Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low"}],"updated_at":"2026-11-04T20:13:45.839046Z"}],"ghsa":[{"id":"GHSA-j38w-r3vf-5255","title":"Bagisto before 2.4.5 contains a stored cross-site scripting vulnerability that allows...","description":"Bagisto before 2.4.5 contains a stored cross-site scripting vulnerability that allows authenticated customers to upload HTML files via the RMA send-message endpoint without type or extension validation. Attackers can upload a .html attachment containing JavaScript served under /storage/rma-conversation/, executing script in the shop's origin when an administrator opens it.","status":"published","published":"2026-11-04T00:32:17Z","modified":"2026-11-04T00:32:18Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-434"],"updated_at":"2026-11-04T00:48:26.298057Z"}],"nvd":[{"id":"CVE-2026-121733","description":"Bagisto before 2.4.5 contains a stored cross-site scripting vulnerability that allows authenticated customers to upload HTML files via the RMA send-message endpoint without type or extension validation. Attackers can upload a .html attachment containing JavaScript served under /storage/rma-conversation/, executing script in the shop's origin when an administrator opens it.","status":"published","published":"2026-11-03T23:17:37.177Z","modified":"2026-11-12T21:36:06.743Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low","assessor":"secondary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-434"],"updated_at":"2026-11-12T23:33:06.861048Z"}],"osv":[{"id":"CVE-2026-121733","title":"Bagisto before 2.4.5 Stored XSS via RMA Conversation Attachment Upload","description":"Bagisto before 2.4.5 contains a stored cross-site scripting vulnerability that allows authenticated customers to upload HTML files via the RMA send-message endpoint without type or extension validation. Attackers can upload a .html attachment containing JavaScript served under /storage/rma-conversation/, executing script in the shop's origin when an administrator opens it.","status":"published","published":"2026-11-03T22:55:37.881Z","modified":"2026-11-05T21:15:54.212572508Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low"}],"cwes":["CWE-434"],"updated_at":"2026-11-05T22:01:21.792402Z"}]}}