{"cve":{"cve_id":"CVE-2026-21290","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.00452,"epss_percentile":0.37453,"epss_as_of":"2026-08-26","description":"Adobe Commerce versions 2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15, 2.4.4-p16 and earlier are affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by a low-privileged attacker to inject malicious scripts into vulnerable form fields. Malicious JavaScript may be executed in a victim’s browser when they browse to the page containing the vulnerable field. A successful attacker can abuse this to achieve session takeover, increasing the confidentiality, and integrity impact to high. Exploitation of this issue requires user interaction in that a victim must browse to the page containing the vulnerable field.","published_at":"2026-03-11T02:19:14.251000Z","last_modified_at":null,"cvss_v3_score":8.7,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"none","ssvc_automatable":false,"ssvc_technical_impact":"total","cwes":["CWE-79"],"nvd_references":["https://helpx.adobe.com/security/products/magento/apsb26-05.html"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-29T23:46:59.033383Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"R","value_label":"Required"},{"metric":"S","name":"Scope","value":"C","value_label":"Changed"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"N","value_label":"None"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"adobe","vendor_name":"Adobe","product_slug":"adobe-commerce","product_name":"Adobe Commerce","version_start":"0","version_start_inclusive":true,"version_end":"2.4.4-p16","version_end_inclusive":true,"cpe23_uri":"cve5:adobe:adobe-commerce:0:2.4.4-p16"},{"vendor_slug":"adobe","vendor_name":"Adobe","product_slug":"adobe-commerce","product_name":"Adobe Commerce","version_start":"0","version_start_inclusive":true,"version_end":"2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15, 2.4.4-p16","version_end_inclusive":true,"cpe23_uri":"cve5:adobe:adobe-commerce:0:2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15, 2.4.4-p16"},{"vendor_slug":"adobe","vendor_name":"Adobe","product_slug":"adobe-commerce","product_name":"Adobe Commerce","version_start":"2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16, 2.4.4-p17","version_start_inclusive":true,"version_end":"2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16, 2.4.4-p17","version_end_inclusive":true,"cpe23_uri":"cve5:adobe:adobe-commerce:2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16, 2.4.4-p17:2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16, 2.4.4-p17"},{"vendor_slug":"adobe","vendor_name":"Adobe","product_slug":"adobe-commerce-b2b","product_name":"Adobe Commerce B2B","version_start":"0","version_start_inclusive":true,"version_end":"1.5.3-alpha3, 1.5.2-p3, 1.4.2-p8, 1.3.5-p13, 1.3.4-p15, 1.3.3-p16","version_end_inclusive":true,"cpe23_uri":"cve5:adobe:adobe-commerce-b2b:0:1.5.3-alpha3, 1.5.2-p3, 1.4.2-p8, 1.3.5-p13, 1.3.4-p15, 1.3.3-p16"},{"vendor_slug":"adobe","vendor_name":"Adobe","product_slug":"adobe-commerce-b2b","product_name":"Adobe Commerce B2B","version_start":"1.5.3-beta1, 1.5.2-p4, 1.4.2-p9, 1.3.5-p14, 1.3.4-p16, 1.3.3-p17","version_start_inclusive":true,"version_end":"1.5.3-beta1, 1.5.2-p4, 1.4.2-p9, 1.3.5-p14, 1.3.4-p16, 1.3.3-p17","version_end_inclusive":true,"cpe23_uri":"cve5:adobe:adobe-commerce-b2b:1.5.3-beta1, 1.5.2-p4, 1.4.2-p9, 1.3.5-p14, 1.3.4-p16, 1.3.3-p17:1.5.3-beta1, 1.5.2-p4, 1.4.2-p9, 1.3.5-p14, 1.3.4-p16, 1.3.3-p17"},{"vendor_slug":"adobe","vendor_name":"Adobe","product_slug":"magento-open-source","product_name":"Magento Open Source","version_start":"0","version_start_inclusive":true,"version_end":"2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15","version_end_inclusive":true,"cpe23_uri":"cve5:adobe:magento-open-source:0:2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15"},{"vendor_slug":"adobe","vendor_name":"Adobe","product_slug":"magento-open-source","product_name":"Magento Open Source","version_start":"2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16","version_start_inclusive":true,"version_end":"2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16","version_end_inclusive":true,"cpe23_uri":"cve5:adobe:magento-open-source:2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16:2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16"}],"exploit_refs":[],"news":[],"references":[{"url":"https://helpx.adobe.com/security/products/magento/apsb26-05.html","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2026-03-11T02:19:14.251000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:51:25.596901Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:51:25.596901Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:51:25.596901Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"ssvc_changed","at":"2026-06-29T23:46:59.033383Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T23:46:59.033383Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T23:46:59.033383Z","label":"SSVC decision revised","source":"vulnrichment"}]}