{"id":"CVE-2026-120548","aliases":["EUVD-2026-119032","GHSA-qmj7-j3cv-2hjp"],"status":"published","title":"YML for Yandex Market \u003c= 5.10.0 - Unauthenticated Sensitive Information Exposure through Log File via 'y4ym_check_action' Parameter via admin-post.php","description":"The YML for Yandex Market plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 5.10.0 via the 'y4ym_check_action' parameter. This makes it possible for unauthenticated attackers to extract the merchant's plaintext Yandex Market API key written to the publicly accessible log file at wp-content/uploads/y4ym/yml-for-yandex-market.log, granting full control over the merchant's marketplace catalogue, prices, and stock. Exploitation requires that the targeted feed has a stored Yandex Market API key and that the y4ym_keeplogs option is enabled — both conditions that represent normal, documented plugin usage actively encouraged by the plugin's own support and feedback workflow.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00315,"percentile":0.24788,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-532"],"published":"2026-11-07T09:25:45Z","modified":"2026-11-07T12:32:00Z","products":[{"vendor":"icopydoc","product":"yml for yandex market"},{"vendor":"unknown","product":"yml for yandex market"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/33a2cf5c-d71f-45cf-8f8a-0edd47bc1974?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/yml-for-yandex-market/tags/5.10.0/admin/class-y4ym-admin.php#L467"},{"url":"https://plugins.trac.wordpress.org/browser/yml-for-yandex-market/tags/5.10.0/includes/feeds/import/class-y4ym-api.php#L580"},{"url":"https://plugins.trac.wordpress.org/browser/yml-for-yandex-market/tags/5.10.0/includes/core/class-y4ym-error-log.php#L136"},{"url":"https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3774592%40yml-for-yandex-market\u0026new=3774592%40yml-for-yandex-market"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-120548"},{"url":"https://github.com/advisories/GHSA-qmj7-j3cv-2hjp"}],"sources":{"cve":[{"id":"CVE-2026-120548","title":"YML for Yandex Market \u003c= 5.10.0 - Unauthenticated Sensitive Information Exposure through Log File via 'y4ym_check_action' Parameter via admin-post.php","description":"The YML for Yandex Market plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 5.10.0 via the 'y4ym_check_action' parameter. This makes it possible for unauthenticated attackers to extract the merchant's plaintext Yandex Market API key written to the publicly accessible log file at wp-content/uploads/y4ym/yml-for-yandex-market.log, granting full control over the merchant's marketplace catalogue, prices, and stock. Exploitation requires that the targeted feed has a stored Yandex Market API key and that the y4ym_keeplogs option is enabled — both conditions that represent normal, documented plugin usage actively encouraged by the plugin's own support and feedback workflow.","status":"published","published":"2026-11-07T09:25:45.776Z","modified":"2026-11-08T19:05:22.969Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-532"],"updated_at":"2026-11-07T10:33:36.209845Z"}],"euvd":[{"id":"EUVD-2026-119032","description":"The YML for Yandex Market plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 5.10.0 via the 'y4ym_check_action' parameter. This makes it possible for unauthenticated attackers to extract the merchant's plaintext Yandex Market API key written to the publicly accessible log file at wp-content/uploads/y4ym/yml-for-yandex-market.log, granting full control over the merchant's marketplace catalogue, prices, and stock. Exploitation requires that the targeted feed has a stored Yandex Market API key and that the y4ym_keeplogs option is enabled — both conditions that represent normal, documented plugin usage actively encouraged by the plugin's own support and feedback workflow.","status":"published","published":"2026-11-07T09:25:45Z","modified":"2026-11-08T19:05:22Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-07T15:09:44.361591Z"}],"ghsa":[{"id":"GHSA-qmj7-j3cv-2hjp","title":"The YML for Yandex Market plugin for WordPress is vulnerable to Sensitive Information Exposure in...","description":"The YML for Yandex Market plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 5.10.0 via the 'y4ym_check_action' parameter. This makes it possible for unauthenticated attackers to extract the merchant's plaintext Yandex Market API key written to the publicly accessible log file at wp-content/uploads/y4ym/yml-for-yandex-market.log, granting full control over the merchant's marketplace catalogue, prices, and stock. Exploitation requires that the targeted feed has a stored Yandex Market API key and that the y4ym_keeplogs option is enabled — both conditions that represent normal, documented plugin usage actively encouraged by the plugin's own support and feedback workflow.","status":"published","published":"2026-11-07T12:31:50Z","modified":"2026-11-07T12:32:00Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-532"],"updated_at":"2026-11-07T12:37:14.117196Z"}],"nvd":[{"id":"CVE-2026-120548","description":"The YML for Yandex Market plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 5.10.0 via the 'y4ym_check_action' parameter. This makes it possible for unauthenticated attackers to extract the merchant's plaintext Yandex Market API key written to the publicly accessible log file at wp-content/uploads/y4ym/yml-for-yandex-market.log, granting full control over the merchant's marketplace catalogue, prices, and stock. Exploitation requires that the targeted feed has a stored Yandex Market API key and that the y4ym_keeplogs option is enabled — both conditions that represent normal, documented plugin usage actively encouraged by the plugin's own support and feedback workflow.","status":"published","published":"2026-11-07T10:17:09.88Z","modified":"2026-11-08T19:17:36.19Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-532"],"updated_at":"2026-11-08T22:11:13.623406Z"}]}}