{"items":[{"id":"NVI-00008196","kind":"vulnerability","title":"Cross-site scripting in eZ Platform Kernel","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-mrvj-7q4f-5p42","CVE-2021-46875"],"plain_summary":"OSV carries this publisher advisory for ezsystems/ezpublish-kernel, ezsystems/ezpublish-kernel, ezsystems/ezplatform-kernel, ezsystems/ezplatform-kernel. 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 6.13.8.2 for ezsystems/ezpublish-kernel. Confirm the publisher’s latest guidance.","source_ids":["sr-f9ddc2d63b5904e4b8505b63d30fb715"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 7.5.15.2 for ezsystems/ezpublish-kernel. Confirm the publisher’s latest guidance.","source_ids":["sr-f9ddc2d63b5904e4b8505b63d30fb715"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 1.2.5.1 for ezsystems/ezplatform-kernel. Confirm the publisher’s latest guidance.","source_ids":["sr-f9ddc2d63b5904e4b8505b63d30fb715"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 1.3.1.1 for ezsystems/ezplatform-kernel. Confirm the publisher’s latest guidance.","source_ids":["sr-f9ddc2d63b5904e4b8505b63d30fb715"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-3f00801c5e08c7d38ecdf1eb37c4104e"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.398%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.3404. Missing scores are unknown.","source_id":"sr-3f00801c5e08c7d38ecdf1eb37c4104e"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-f9ddc2d63b5904e4b8505b63d30fb715","url":"https://github.com/advisories/GHSA-mrvj-7q4f-5p42","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-mrvj-7q4f-5p42","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.983Z"},{"id":"sr-3f00801c5e08c7d38ecdf1eb37c4104e","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-2021-46875","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:03.704Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-f9ddc2d63b5904e4b8505b63d30fb715"],"technology":"ezsystems/ezpublish-kernel","known_exclusions":[],"conditions_summary":"### Impact\nIn file upload it is possible by certain means to upload files like .html and .js. These may contain XSS exploits which will be run when links to them are accessed by victims.\n\n### Patches\nThe fix consists simply of adding common types of scriptable file types to the configuration of the already existing filetype blacklist feature. See \"Patched versions\". As such, this can also be done manually, without installing the patched versions. This may be relevant if you are currently running a considerably older version of the kernel package and don't want to upgrade it at this time. Please see the settting \"ezsettings.default.io.file_storage.file_type_blacklist\" at:\nhttps://github.com/ezsystems/ezplatform-kernel/blob/master/eZ/Bundle/EzPublishCoreBundle/Resources/config/default_settings.yml#L109\n\n### Important note\nYou should adapt this setting to your needs. Do not add file types to the blacklist that you actually need to be able to upload. For instance, if you need your editors to be able to upload SVG files, then don't blacklist that. Instead, you could e.g. use an approval workflow for such content.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 6.13.8.2"]},{"certainty":"source_listed","source_ids":["sr-f9ddc2d63b5904e4b8505b63d30fb715"],"technology":"ezsystems/ezpublish-kernel","known_exclusions":[],"conditions_summary":"### Impact\nIn file upload it is possible by certain means to upload files like .html and .js. These may contain XSS exploits which will be run when links to them are accessed by victims.\n\n### Patches\nThe fix consists simply of adding common types of scriptable file types to the configuration of the already existing filetype blacklist feature. See \"Patched versions\". As such, this can also be done manually, without installing the patched versions. This may be relevant if you are currently running a considerably older version of the kernel package and don't want to upgrade it at this time. Please see the settting \"ezsettings.default.io.file_storage.file_type_blacklist\" at:\nhttps://github.com/ezsystems/ezplatform-kernel/blob/master/eZ/Bundle/EzPublishCoreBundle/Resources/config/default_settings.yml#L109\n\n### Important note\nYou should adapt this setting to your needs. Do not add file types to the blacklist that you actually need to be able to upload. For instance, if you need your editors to be able to upload SVG files, then don't blacklist that. Instead, you could e.g. use an approval workflow for such content.","public_affected_ranges":["ECOSYSTEM: introduced 7.0.0; fixed 7.5.15.2"]},{"certainty":"source_listed","source_ids":["sr-f9ddc2d63b5904e4b8505b63d30fb715"],"technology":"ezsystems/ezplatform-kernel","known_exclusions":[],"conditions_summary":"### Impact\nIn file upload it is possible by certain means to upload files like .html and .js. These may contain XSS exploits which will be run when links to them are accessed by victims.\n\n### Patches\nThe fix consists simply of adding common types of scriptable file types to the configuration of the already existing filetype blacklist feature. See \"Patched versions\". As such, this can also be done manually, without installing the patched versions. This may be relevant if you are currently running a considerably older version of the kernel package and don't want to upgrade it at this time. Please see the settting \"ezsettings.default.io.file_storage.file_type_blacklist\" at:\nhttps://github.com/ezsystems/ezplatform-kernel/blob/master/eZ/Bundle/EzPublishCoreBundle/Resources/config/default_settings.yml#L109\n\n### Important note\nYou should adapt this setting to your needs. Do not add file types to the blacklist that you actually need to be able to upload. For instance, if you need your editors to be able to upload SVG files, then don't blacklist that. Instead, you could e.g. use an approval workflow for such content.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 1.2.5.1"]},{"certainty":"source_listed","source_ids":["sr-f9ddc2d63b5904e4b8505b63d30fb715"],"technology":"ezsystems/ezplatform-kernel","known_exclusions":[],"conditions_summary":"### Impact\nIn file upload it is possible by certain means to upload files like .html and .js. These may contain XSS exploits which will be run when links to them are accessed by victims.\n\n### Patches\nThe fix consists simply of adding common types of scriptable file types to the configuration of the already existing filetype blacklist feature. See \"Patched versions\". As such, this can also be done manually, without installing the patched versions. This may be relevant if you are currently running a considerably older version of the kernel package and don't want to upgrade it at this time. Please see the settting \"ezsettings.default.io.file_storage.file_type_blacklist\" at:\nhttps://github.com/ezsystems/ezplatform-kernel/blob/master/eZ/Bundle/EzPublishCoreBundle/Resources/config/default_settings.yml#L109\n\n### Important note\nYou should adapt this setting to your needs. Do not add file types to the blacklist that you actually need to be able to upload. For instance, if you need your editors to be able to upload SVG files, then don't blacklist that. Instead, you could e.g. use an approval workflow for such content.","public_affected_ranges":["ECOSYSTEM: introduced 1.3.0; fixed 1.3.1.1"]}],"null_published_at":"2026-10-31T23:18:17.199Z","source_updated_at":"2026-05-04T08:46:11.070Z","source_disclosed_at":"2021-03-19T19:56:42.000Z","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":"2026-10-31T21:42:30.983Z"},{"id":"NVI-00008196","kind":"vulnerability","title":"Cross-site scripting in eZ Platform Kernel","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-mrvj-7q4f-5p42","CVE-2021-46875"],"plain_summary":"OSV carries this publisher advisory for ezsystems/ezpublish-kernel, ezsystems/ezpublish-kernel, ezsystems/ezplatform-kernel, ezsystems/ezplatform-kernel. 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 6.13.8.2 for ezsystems/ezpublish-kernel. Confirm the publisher’s latest guidance.","source_ids":["sr-f9ddc2d63b5904e4b8505b63d30fb715"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 7.5.15.2 for ezsystems/ezpublish-kernel. Confirm the publisher’s latest guidance.","source_ids":["sr-f9ddc2d63b5904e4b8505b63d30fb715"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 1.2.5.1 for ezsystems/ezplatform-kernel. Confirm the publisher’s latest guidance.","source_ids":["sr-f9ddc2d63b5904e4b8505b63d30fb715"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 1.3.1.1 for ezsystems/ezplatform-kernel. Confirm the publisher’s latest guidance.","source_ids":["sr-f9ddc2d63b5904e4b8505b63d30fb715"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-f9ddc2d63b5904e4b8505b63d30fb715","url":"https://github.com/advisories/GHSA-mrvj-7q4f-5p42","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-mrvj-7q4f-5p42","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.983Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-f9ddc2d63b5904e4b8505b63d30fb715"],"technology":"ezsystems/ezpublish-kernel","known_exclusions":[],"conditions_summary":"### Impact\nIn file upload it is possible by certain means to upload files like .html and .js. These may contain XSS exploits which will be run when links to them are accessed by victims.\n\n### Patches\nThe fix consists simply of adding common types of scriptable file types to the configuration of the already existing filetype blacklist feature. See \"Patched versions\". As such, this can also be done manually, without installing the patched versions. This may be relevant if you are currently running a considerably older version of the kernel package and don't want to upgrade it at this time. Please see the settting \"ezsettings.default.io.file_storage.file_type_blacklist\" at:\nhttps://github.com/ezsystems/ezplatform-kernel/blob/master/eZ/Bundle/EzPublishCoreBundle/Resources/config/default_settings.yml#L109\n\n### Important note\nYou should adapt this setting to your needs. Do not add file types to the blacklist that you actually need to be able to upload. For instance, if you need your editors to be able to upload SVG files, then don't blacklist that. Instead, you could e.g. use an approval workflow for such content.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 6.13.8.2"]},{"certainty":"source_listed","source_ids":["sr-f9ddc2d63b5904e4b8505b63d30fb715"],"technology":"ezsystems/ezpublish-kernel","known_exclusions":[],"conditions_summary":"### Impact\nIn file upload it is possible by certain means to upload files like .html and .js. These may contain XSS exploits which will be run when links to them are accessed by victims.\n\n### Patches\nThe fix consists simply of adding common types of scriptable file types to the configuration of the already existing filetype blacklist feature. See \"Patched versions\". As such, this can also be done manually, without installing the patched versions. This may be relevant if you are currently running a considerably older version of the kernel package and don't want to upgrade it at this time. Please see the settting \"ezsettings.default.io.file_storage.file_type_blacklist\" at:\nhttps://github.com/ezsystems/ezplatform-kernel/blob/master/eZ/Bundle/EzPublishCoreBundle/Resources/config/default_settings.yml#L109\n\n### Important note\nYou should adapt this setting to your needs. Do not add file types to the blacklist that you actually need to be able to upload. For instance, if you need your editors to be able to upload SVG files, then don't blacklist that. Instead, you could e.g. use an approval workflow for such content.","public_affected_ranges":["ECOSYSTEM: introduced 7.0.0; fixed 7.5.15.2"]},{"certainty":"source_listed","source_ids":["sr-f9ddc2d63b5904e4b8505b63d30fb715"],"technology":"ezsystems/ezplatform-kernel","known_exclusions":[],"conditions_summary":"### Impact\nIn file upload it is possible by certain means to upload files like .html and .js. These may contain XSS exploits which will be run when links to them are accessed by victims.\n\n### Patches\nThe fix consists simply of adding common types of scriptable file types to the configuration of the already existing filetype blacklist feature. See \"Patched versions\". As such, this can also be done manually, without installing the patched versions. This may be relevant if you are currently running a considerably older version of the kernel package and don't want to upgrade it at this time. Please see the settting \"ezsettings.default.io.file_storage.file_type_blacklist\" at:\nhttps://github.com/ezsystems/ezplatform-kernel/blob/master/eZ/Bundle/EzPublishCoreBundle/Resources/config/default_settings.yml#L109\n\n### Important note\nYou should adapt this setting to your needs. Do not add file types to the blacklist that you actually need to be able to upload. For instance, if you need your editors to be able to upload SVG files, then don't blacklist that. Instead, you could e.g. use an approval workflow for such content.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 1.2.5.1"]},{"certainty":"source_listed","source_ids":["sr-f9ddc2d63b5904e4b8505b63d30fb715"],"technology":"ezsystems/ezplatform-kernel","known_exclusions":[],"conditions_summary":"### Impact\nIn file upload it is possible by certain means to upload files like .html and .js. These may contain XSS exploits which will be run when links to them are accessed by victims.\n\n### Patches\nThe fix consists simply of adding common types of scriptable file types to the configuration of the already existing filetype blacklist feature. See \"Patched versions\". As such, this can also be done manually, without installing the patched versions. This may be relevant if you are currently running a considerably older version of the kernel package and don't want to upgrade it at this time. Please see the settting \"ezsettings.default.io.file_storage.file_type_blacklist\" at:\nhttps://github.com/ezsystems/ezplatform-kernel/blob/master/eZ/Bundle/EzPublishCoreBundle/Resources/config/default_settings.yml#L109\n\n### Important note\nYou should adapt this setting to your needs. Do not add file types to the blacklist that you actually need to be able to upload. For instance, if you need your editors to be able to upload SVG files, then don't blacklist that. Instead, you could e.g. use an approval workflow for such content.","public_affected_ranges":["ECOSYSTEM: introduced 1.3.0; fixed 1.3.1.1"]}],"null_published_at":"2026-10-31T22:13:22.834Z","source_updated_at":"2026-05-04T08:46:11.070Z","source_disclosed_at":"2021-03-19T19:56:42.000Z","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":"2026-10-31T21:42:30.983Z"}],"next_cursor":null,"snapshot_revision":"42594"}