{"id":"CVE-2026-100872","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-100872","generatedAt":"2026-10-28T10:37:27.889Z","title":"Sylius versions before 2.1.16 and 2.2.9 fail to validate payment amounts during cart recalculation, allowing unauthenticated attackers to modify order totals after gateway transaction initiation.","description":"Sylius versions before 2.1.16 and 2.2.9 fail to validate payment amounts during cart recalculation, allowing unauthenticated attackers to modify order totals after gateway transaction initiation. Attackers can pay a small amount, enlarge the order after gateway capture, and have the system mark the inflated order as fully paid while the gateway captured only the original amount.","published":"2026-09-27T13:16:39.000Z","lastModified":"2026-09-28T20:57:50.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":8.7,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/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/M"},"cwe":["CWE-345"],"affected":[],"epss":{"score":0.00219,"percentile":0.12369,"date":"2026-10-27","history":[{"date":"2026-09-28","score":0.0018,"percentile":0.06755}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.22%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-27T13:16:39.000Z","detail":{"score":"8.7","severity":"HIGH","publishedAt":"2026-09-27T13:16:38.523Z"},"summary":"New CVE, high severity (CVSS 8.7)."}],"references":[{"url":"https://github.com/Sylius/Sylius","source":"disclosure@vulncheck.com"},{"url":"https://github.com/Sylius/Sylius/commit/9e9aeaacbc97b1fc01d573e44d6679194527905d","source":"disclosure@vulncheck.com"},{"url":"https://github.com/Sylius/Sylius/pull/19216","source":"disclosure@vulncheck.com"},{"url":"https://github.com/Sylius/Sylius/releases/tag/v2.2.9","source":"disclosure@vulncheck.com"},{"url":"https://github.com/Sylius/Sylius/security/advisories/GHSA-vv4h-q2x8-74g4","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/sylius-2-x-before-2.1.16-and-2.2.9-payment-amount-overwrite","source":"disclosure@vulncheck.com"},{"url":"https://github.com/Sylius/Sylius/security/advisories/GHSA-vv4h-q2x8-74g4","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-100872","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}