{"data":{"id":"CVE-2026-82191","cve_id":"CVE-2026-82191","title":"Unescaped request data reflected into PayPal notify redirect in J2Store 1.0.0-3.3.2, 4.0.0-4.0.22, 4.1.0-4.1.7","summary":"Unescaped request data reflected into PayPal notify redirect in J2Store 1.0.0-3.3.2, 4.0.0-4.0.22, 4.1.0-4.1.7","severity":"MEDIUM","cvss":{"score":5.3,"version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/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","source":"nvd"},"published_at":"2026-09-15T19:17:42.237000Z","modified_at":"2026-09-16T19:28:06.713000Z","withdrawn_at":null,"is_joomla":true,"is_joomla_core":false,"relevance":"certain","product":"com_j2store","extension":{"type":"component","name":"com_j2store"},"sources":["nvd"],"source_count":1,"url":"https://cve.oyer.fr/cve/CVE-2026-82191","description":"Joomla Extension - j2commerce.com - Unescaped request data reflected into PayPal notify redirect in J2Store 1.0.0-3.3.2, 4.0.0-4.0.22, 4.1.0-4.1.7 - A crafted link to the paypal notify endpoint, if followed by a victim's browser (or an automated system that fetches it), causes the resulting redirect to `com_j2store`'s checkout controller to carry attacker-chosen query parameters instead of only the intended `view=checkout&task=confirmPayment&orderpayment_type=...&paction=process` set — parameter injection/smuggling into that follow-up request. This requires a victim to load the crafted link (`UI:R`/`UI:P`); it does not by itself grant an unauthenticated attacker anything they could not already obtain by requesting the target `com_j2store` URL directly with their own parameters.","cwe":["CWE-1241"],"affected":[{"package":null,"product":"J2Store extension for Joomla","vendor":"j2commerce.com","ecosystem":null,"cpe":null,"version_start":"1.0.0","version_end":"3.3.22","version_end_inclusive":true,"fixed_version":null,"type":null,"source":"nvd"},{"package":null,"product":"J2Store extension for Joomla","vendor":"j2commerce.com","ecosystem":null,"cpe":null,"version_start":"4.0.0","version_end":"4.0.22","version_end_inclusive":true,"fixed_version":null,"type":null,"source":"nvd"},{"package":null,"product":"J2Store extension for Joomla","vendor":"j2commerce.com","ecosystem":null,"cpe":null,"version_start":"4.1.0","version_end":"4.1.7","version_end_inclusive":true,"fixed_version":null,"type":null,"source":"nvd"}],"references":[{"url":"https://www.j2commerce.com/","title":null,"source":"nvd"}],"source_records":[{"source":"nvd","external_id":"CVE-2026-82191","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82191","severity":"MEDIUM","cvss_score":5.3,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/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","cvss_version":"4.0","first_seen_at":"2026-09-26T09:34:35.600327Z","last_seen_at":"2026-09-26T09:34:35.600327Z"}],"history":[{"at":"2026-09-26T09:34:35.600327Z","event":"created","source":"nvd","detail":"Détectée via nvd"}]}}