{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"bagisto/bagisto","product":"Bagisto","source":"CNA: VulnCheck","vendor":"Webkul","versions":[{"lessThan":"2.4.5","status":"affected","version":"0","versionType":"semver"}]}],"cveId":"CVE-2026-121733","cwes":["CWE-434"],"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.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":2.1,"severity":"low","source":"CNA: VulnCheck","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","version":"4.0"},{"score":5.4,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},{"score":2.1,"severity":"low","source":"NVD: disclosure@vulncheck.com","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","version":"4.0"},{"score":5.4,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","version":"3.1"}],"modifiedAt":1793747857177,"publishedAt":1793746537881,"references":[{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/bagisto/bagisto/commit/204e43c26705b66ef2ddfb2a9eebb25f5e8f6a2c"},{"source":"CNA: VulnCheck","tags":["product"],"url":"https://github.com/bagisto/bagisto"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/bagisto/bagisto/commit/e28db3e8c53a94a99cf153ac338466720acd9004"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/bagisto/bagisto/blob/v2.4.4/packages/Webkul/Shop/src/Http/Controllers/Customer/Account/RMAController.php#L408"},{"source":"CNA: VulnCheck","tags":["release-notes"],"url":"https://github.com/bagisto/bagisto/releases/tag/v2.4.5"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/bagisto-before-2.4.5-stored-xss-via-rma-conversation-attachment-upload"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/bagisto/bagisto"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/bagisto/bagisto/blob/v2.4.4/packages/Webkul/Shop/src/Http/Controllers/Customer/Account/RMAController.php#L408"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/bagisto/bagisto/commit/204e43c26705b66ef2ddfb2a9eebb25f5e8f6a2c"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/bagisto/bagisto/commit/e28db3e8c53a94a99cf153ac338466720acd9004"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/bagisto/bagisto/releases/tag/v2.4.5"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/bagisto-before-2.4.5-stored-xss-via-rma-conversation-attachment-upload"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/bagisto/bagisto/commit/204e43c26705b66ef2ddfb2a9eebb25f5e8f6a2c"},{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/bagisto/bagisto/commit/e28db3e8c53a94a99cf153ac338466720acd9004"}],"revision":"b10c74222c4b80cc81f2e6bd011410ea429d292e234ecc2f9440e171bfab260a","sources":[{"modifiedAt":1793746537881,"name":"CNA: VulnCheck","retrievedAt":1793748236268,"url":"https://www.cve.org/CVERecord?id=CVE-2026-121733"},{"modifiedAt":1793747857177,"name":"NVD","retrievedAt":1793751792060,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121733"}],"ssvc":null,"status":"published","title":"Bagisto before 2.4.5 Stored XSS via RMA Conversation Attachment Upload","updatedAt":1793751792060}