{"items":[{"id":"NVI-00006860","kind":"vulnerability","title":"Bagisto has HTML Filter Bypass that Enables Stored XSS","revision":4,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-2mwc-h2mg-v6p8","CVE-2026-21451"],"plain_summary":"OSV carries this publisher advisory for bagisto/bagisto. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 2.3.10 for bagisto/bagisto. Confirm the publisher’s latest guidance.","source_ids":["sr-c51b4869a1c1b965d91259c85386bfda"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. 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As a result, arbitrary JavaScript can be stored in the CMS content and executed whenever the page is viewed or edited.\nThis exposes administrators to a high-severity risk, including complete account takeover, backend hijacking, and malicious script execution.\n\n### Details\nBagisto’s CMS editor includes an HTML sanitation mechanism intended to protect against script injection by wrapping raw script content in `` elements. However, this mechanism is applied only to requests submitted through the UI. When the CMS update request is intercepted and modified at the HTTP level, the sanitation layer fails to strip or encode embedded `` tags.\n\nBecause the back-end trusts the manipulated request, the malicious script is stored in the database exactly as submitted. When an administrator opens the CMS page (either in the editor or in the storefront), the JavaScript executes in the browser context with full admin ","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.3.10"]}],"null_published_at":"2026-11-04T18:04:03.105Z","source_updated_at":"2026-02-03T03:14:13.362Z","source_disclosed_at":"2026-01-02T21:16:23.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:41:49.642Z"},{"id":"NVI-00006860","kind":"vulnerability","title":"Bagisto has HTML Filter Bypass that Enables Stored XSS","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-2mwc-h2mg-v6p8","CVE-2026-21451"],"plain_summary":"OSV carries this publisher advisory for bagisto/bagisto. 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This report has not examined your application.","related_sources":[{"id":"sr-c51b4869a1c1b965d91259c85386bfda","url":"https://github.com/advisories/GHSA-2mwc-h2mg-v6p8","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-2mwc-h2mg-v6p8","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.642Z"},{"id":"sr-85d432bb24bd6fea612b2310c522e86e","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21451","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-21451","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T01:40:47.597Z"},{"id":"sr-2d0490ea419ae3271024f5b05e0295ba","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-21451","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.375Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-c51b4869a1c1b965d91259c85386bfda"],"technology":"bagisto/bagisto","known_exclusions":[],"conditions_summary":"### Summary\nA stored Cross-Site Scripting (XSS) vulnerability exists in Bagisto 2.3.8 within the CMS page editor. Although the platform normally attempts to sanitize `` tags, the filtering can be bypassed by manipulating the raw HTTP POST request before submission. As a result, arbitrary JavaScript can be stored in the CMS content and executed whenever the page is viewed or edited.\nThis exposes administrators to a high-severity risk, including complete account takeover, backend hijacking, and malicious script execution.\n\n### Details\nBagisto’s CMS editor includes an HTML sanitation mechanism intended to protect against script injection by wrapping raw script content in `` elements. However, this mechanism is applied only to requests submitted through the UI. When the CMS update request is intercepted and modified at the HTTP level, the sanitation layer fails to strip or encode embedded `` tags.\n\nBecause the back-end trusts the manipulated request, the malicious script is stored in the database exactly as submitted. When an administrator opens the CMS page (either in the editor or in the storefront), the JavaScript executes in the browser context with full admin ","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.3.10"]}],"null_published_at":"2026-11-03T17:49:21.357Z","source_updated_at":"2026-02-03T03:14:13.362Z","source_disclosed_at":"2026-01-02T21:16:23.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:41:49.642Z"},{"id":"NVI-00006860","kind":"vulnerability","title":"Bagisto has HTML Filter Bypass that Enables Stored XSS","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-2mwc-h2mg-v6p8","CVE-2026-21451"],"plain_summary":"OSV carries this publisher advisory for bagisto/bagisto. 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This report has not examined your application.","related_sources":[{"id":"sr-c51b4869a1c1b965d91259c85386bfda","url":"https://github.com/advisories/GHSA-2mwc-h2mg-v6p8","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-2mwc-h2mg-v6p8","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.642Z"},{"id":"sr-2d0490ea419ae3271024f5b05e0295ba","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-21451","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.375Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-c51b4869a1c1b965d91259c85386bfda"],"technology":"bagisto/bagisto","known_exclusions":[],"conditions_summary":"### Summary\nA stored Cross-Site Scripting (XSS) vulnerability exists in Bagisto 2.3.8 within the CMS page editor. Although the platform normally attempts to sanitize `` tags, the filtering can be bypassed by manipulating the raw HTTP POST request before submission. As a result, arbitrary JavaScript can be stored in the CMS content and executed whenever the page is viewed or edited.\nThis exposes administrators to a high-severity risk, including complete account takeover, backend hijacking, and malicious script execution.\n\n### Details\nBagisto’s CMS editor includes an HTML sanitation mechanism intended to protect against script injection by wrapping raw script content in `` elements. However, this mechanism is applied only to requests submitted through the UI. When the CMS update request is intercepted and modified at the HTTP level, the sanitation layer fails to strip or encode embedded `` tags.\n\nBecause the back-end trusts the manipulated request, the malicious script is stored in the database exactly as submitted. When an administrator opens the CMS page (either in the editor or in the storefront), the JavaScript executes in the browser context with full admin ","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.3.10"]}],"null_published_at":"2026-10-31T22:27:15.277Z","source_updated_at":"2026-02-03T03:14:13.362Z","source_disclosed_at":"2026-01-02T21:16:23.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:41:49.642Z"},{"id":"NVI-00006860","kind":"vulnerability","title":"Bagisto has HTML Filter Bypass that Enables Stored XSS","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-2mwc-h2mg-v6p8","CVE-2026-21451"],"plain_summary":"OSV carries this publisher advisory for bagisto/bagisto. 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As a result, arbitrary JavaScript can be stored in the CMS content and executed whenever the page is viewed or edited.\nThis exposes administrators to a high-severity risk, including complete account takeover, backend hijacking, and malicious script execution.\n\n### Details\nBagisto’s CMS editor includes an HTML sanitation mechanism intended to protect against script injection by wrapping raw script content in `` elements. However, this mechanism is applied only to requests submitted through the UI. When the CMS update request is intercepted and modified at the HTTP level, the sanitation layer fails to strip or encode embedded `` tags.\n\nBecause the back-end trusts the manipulated request, the malicious script is stored in the database exactly as submitted. When an administrator opens the CMS page (either in the editor or in the storefront), the JavaScript executes in the browser context with full admin ","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.3.10"]}],"null_published_at":"2026-10-31T22:13:14.300Z","source_updated_at":"2026-02-03T03:14:13.362Z","source_disclosed_at":"2026-01-02T21:16:23.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:41:49.642Z"}],"next_cursor":null,"snapshot_revision":"42594"}