{"id":"CVE-2026-15604","aliases":["EUVD-2026-59893","GHSA-vrrh-33qv-f36q"],"status":"published","title":"Toocheke Companion \u003c= 2.10 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'series_bg_color' Post Meta","description":"The Toocheke Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.10 via the 'series_bg_color' post meta field. This is due to insufficient input sanitization in the toocheke_series_bg_color_save() function (which stores the raw $_POST value in post meta) and insufficient output escaping in the series admin column rendering (where the stored value is concatenated into a style attribute without esc_attr()). This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user, such as an administrator, accesses the series list table in the admin dashboard.","severity":{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00331,"percentile":0.26525,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-08-16T05:27:27Z","modified":"2026-08-20T12:48:10Z","products":[{"vendor":"toocheke","product":"toocheke companion"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/1bf78bc1-55d7-4230-913f-d7c521225367?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/toocheke-companion/tags/2.3/inc/class-toocheke-companion-admin-columns.php#L296"},{"url":"https://plugins.trac.wordpress.org/browser/toocheke-companion/tags/2.3/inc/class-toocheke-companion-metaboxes.php#L959"},{"url":"https://plugins.trac.wordpress.org/browser/toocheke-companion/tags/2.3/inc/class-toocheke-companion-metaboxes.php#L960"},{"url":"https://plugins.trac.wordpress.org/browser/toocheke-companion/tags/2.11/inc/class-toocheke-companion-admin-columns.php#L296"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15604"},{"url":"https://github.com/advisories/GHSA-vrrh-33qv-f36q"}],"sources":{"cve":[{"id":"CVE-2026-15604","title":"Toocheke Companion \u003c= 2.10 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'series_bg_color' Post Meta","description":"The Toocheke Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.10 via the 'series_bg_color' post meta field. This is due to insufficient input sanitization in the toocheke_series_bg_color_save() function (which stores the raw $_POST value in post meta) and insufficient output escaping in the series admin column rendering (where the stored value is concatenated into a style attribute without esc_attr()). This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user, such as an administrator, accesses the series list table in the admin dashboard.","status":"published","published":"2026-08-16T05:27:27.151Z","modified":"2026-08-18T19:38:03.065Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T13:48:02.226896Z"}],"euvd":[{"id":"EUVD-2026-59893","description":"The Toocheke Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.10 via the 'series_bg_color' post meta field. This is due to insufficient input sanitization in the toocheke_series_bg_color_save() function (which stores the raw $_POST value in post meta) and insufficient output escaping in the series admin column rendering (where the stored value is concatenated into a style attribute without esc_attr()). This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user, such as an administrator, accesses the series list table in the admin dashboard.","status":"published","published":"2026-08-16T05:27:27Z","modified":"2026-08-18T19:38:03Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T18:01:46.060074Z"}],"ghsa":[{"id":"GHSA-vrrh-33qv-f36q","title":"The Toocheke Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting in...","description":"The Toocheke Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.10 via the 'series_bg_color' post meta field. This is due to insufficient input sanitization in the toocheke_series_bg_color_save() function (which stores the raw $_POST value in post meta) and insufficient output escaping in the series admin column rendering (where the stored value is concatenated into a style attribute without esc_attr()). This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user, such as an administrator, accesses the series list table in the admin dashboard.","status":"published","published":"2026-08-16T06:30:25Z","modified":"2026-08-16T06:30:32Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:10:31.619287Z"}],"nvd":[{"id":"CVE-2026-15604","description":"The Toocheke Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.10 via the 'series_bg_color' post meta field. This is due to insufficient input sanitization in the toocheke_series_bg_color_save() function (which stores the raw $_POST value in post meta) and insufficient output escaping in the series admin column rendering (where the stored value is concatenated into a style attribute without esc_attr()). This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user, such as an administrator, accesses the series list table in the admin dashboard.","status":"published","published":"2026-08-16T06:16:50.84Z","modified":"2026-08-20T12:48:10.287Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:38.647684Z"}]}}