{"affected":[{"defaultStatus":"unaffected","ecosystem":"composer","packageName":"bagisto/bagisto","product":"bagisto","source":"CNA: VulnCheck","vendor":"bagisto","versions":[{"lessThan":"2.3.16","status":"affected","version":"0","versionType":"semver"},{"lessThan":"2.4.1","status":"affected","version":"2.4.0","versionType":"semver"},{"status":"unaffected","version":"2.3.16","versionType":"semver"},{"status":"unaffected","version":"2.4.1","versionType":"semver"}]}],"cveId":"CVE-2026-121628","cwes":["CWE-362"],"description":"Bagisto before 2.3.16 and 2.4.x before 2.4.1 contains a race condition vulnerability in manageCartRule() that allows attackers to redeem single-use coupons multiple times. Attackers can submit concurrent order requests to the onepage orders checkout endpoint, bypassing unlocked times_used checks to apply discounts repeatedly.","epss":null,"exploits":[{"kind":"exploit","source":"CNA: VulnCheck","url":"https://gist.github.com/Ayxpp/5358d9fff045e94e0ddb51677ed5d195"}],"kev":null,"metrics":[{"score":6.3,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},{"score":3.7,"severity":"low","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},{"score":6.3,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/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":3.7,"severity":"low","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"}],"modifiedAt":1793747855873,"publishedAt":1793726034596,"references":[{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/bagisto/bagisto/commit/81cb2a2a35b355492f704fd216d679f2145a5650"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/bagisto/bagisto/commit/1f57c10eb9cb61b37de4706ffa439fd26aa7c405"},{"source":"CNA: VulnCheck","tags":["release-notes"],"url":"https://github.com/bagisto/bagisto/releases/tag/v2.3.16"},{"source":"CNA: VulnCheck","tags":["release-notes"],"url":"https://github.com/bagisto/bagisto/releases/tag/v2.4.1"},{"source":"CNA: VulnCheck","tags":["exploit"],"url":"https://gist.github.com/Ayxpp/5358d9fff045e94e0ddb51677ed5d195"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/bagisto/bagisto/blob/v2.4.0/packages/Webkul/CartRule/src/Listeners/Order.php#L30-L95"},{"source":"CNA: VulnCheck","tags":["product"],"url":"https://github.com/bagisto/bagisto"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/bagisto-before-2.3.16-and-2.4-x-before-2.4.1-race-condition-in-coupon-usage-accounting"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://gist.github.com/Ayxpp/5358d9fff045e94e0ddb51677ed5d195"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/bagisto/bagisto"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/bagisto/bagisto/blob/v2.4.0/packages/Webkul/CartRule/src/Listeners/Order.php#L30-L95"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/bagisto/bagisto/commit/1f57c10eb9cb61b37de4706ffa439fd26aa7c405"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/bagisto/bagisto/commit/81cb2a2a35b355492f704fd216d679f2145a5650"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/bagisto/bagisto/releases/tag/v2.3.16"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/bagisto/bagisto/releases/tag/v2.4.1"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/bagisto-before-2.3.16-and-2.4-x-before-2.4.1-race-condition-in-coupon-usage-accounting"}],"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/81cb2a2a35b355492f704fd216d679f2145a5650"},{"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/1f57c10eb9cb61b37de4706ffa439fd26aa7c405"}],"revision":"718e8123ceb4a777bbf39b634e44ec5fa4125f786ac04b600f06af23de2a9208","sources":[{"modifiedAt":1793745667843,"name":"CNA: VulnCheck","retrievedAt":1793748228270,"url":"https://www.cve.org/CVERecord?id=CVE-2026-121628"},{"modifiedAt":1793747855873,"name":"NVD","retrievedAt":1793751687916,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121628"}],"ssvc":{"assessedAt":1793745489792,"automatable":"no","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Bagisto before 2.3.16 and 2.4.x before 2.4.1 Race Condition in Coupon Usage Accounting","updatedAt":1793751687916}