{"id":"CVE-2026-58587","aliases":["DRUPAL-CONTRIB-2026-065","EUVD-2026-43069","GHSA-vx3g-w5hr-294x"],"status":"published","title":"Drupal Canvas - Moderately critical - Improper validation - SA-CONTRIB-2026-065","description":"Improper Neutralization of Input During Web Page Generation (\"Cross-site Scripting\") vulnerability in Drupal Drupal Canvas allows Cross-Site Scripting (XSS). This issue affects Drupal Canvas versions: from 0.0.0 to 1.4.2, from 1.5.0 to 1.5.2, from 1.6.0 to 1.6.1, from 1.7.0 to 1.7.1.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.00256,"percentile":0.17303,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2026-07-01T17:20:16Z","modified":"2026-10-28T02:30:47Z","fixes":[{"ecosystem":"Packagist:https://packages.drupal.org/8","package":"drupal/canvas","fixed_in":["1.4.2","1.5.2","1.6.1","1.7.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Packagist:https://packages.drupal.org/8","package":"drupal/canvas","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.2"}]},{"type":"ECOSYSTEM","events":[{"introduced":"1.5.0"},{"fixed":"1.5.2"}]},{"type":"ECOSYSTEM","events":[{"introduced":"1.6.0"},{"fixed":"1.6.1"}]},{"type":"ECOSYSTEM","events":[{"introduced":"1.7.0"},{"fixed":"1.7.1"}]}]}],"products":[{"vendor":"drupal","product":"drupal canvas"},{"vendor":"drupal_canvas_project","product":"drupal_canvas"}],"references":[{"url":"https://www.drupal.org/sa-contrib-2026-065","tags":["Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-58587","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-vx3g-w5hr-294x"},{"url":"https://git.drupalcode.org/project/canvas","tags":["web"]},{"url":"https://www.drupal.org/project/canvas","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58587.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-58587","title":"Drupal Canvas - Moderately critical - Improper validation - SA-CONTRIB-2026-065","description":"Improper Neutralization of Input During Web Page Generation (\"Cross-site Scripting\") vulnerability in Drupal Drupal Canvas allows Cross-Site Scripting (XSS). This issue affects Drupal Canvas versions: from 0.0.0 to 1.4.2, from 1.5.0 to 1.5.2, from 1.6.0 to 1.6.1, from 1.7.0 to 1.7.1.","status":"published","published":"2026-07-10T21:46:15.116Z","modified":"2026-07-13T16:08:13.354Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T13:47:28.691429Z"}],"euvd":[{"id":"EUVD-2026-43069","description":"Improper Neutralization of Input During Web Page Generation (\"Cross-site Scripting\") vulnerability in Drupal Drupal Canvas allows Cross-Site Scripting (XSS). This issue affects Drupal Canvas versions: from 0.0.0 to 1.4.2, from 1.5.0 to 1.5.2, from 1.6.0 to 1.6.1, from 1.7.0 to 1.7.1.","status":"published","published":"2026-07-10T21:46:15Z","modified":"2026-07-13T16:08:13Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T18:20:01.519776Z"}],"ghsa":[{"id":"GHSA-vx3g-w5hr-294x","title":"Improper Neutralization of Input During Web Page Generation (\"Cross-site Scripting\")...","description":"Improper Neutralization of Input During Web Page Generation (\"Cross-site Scripting\") vulnerability in Drupal Drupal Canvas allows Cross-Site Scripting (XSS). This issue affects Drupal Canvas versions: from 0.0.0 to 1.4.2, from 1.5.0 to 1.5.2, from 1.6.0 to 1.6.1, from 1.7.0 to 1.7.1.","status":"published","published":"2026-07-11T00:31:49Z","modified":"2026-07-13T18:31:40Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:09:25.900925Z"}],"nvd":[{"id":"CVE-2026-58587","description":"Improper Neutralization of Input During Web Page Generation (\"Cross-site Scripting\") vulnerability in Drupal Drupal Canvas allows Cross-Site Scripting (XSS). This issue affects Drupal Canvas versions: from 0.0.0 to 1.4.2, from 1.5.0 to 1.5.2, from 1.6.0 to 1.6.1, from 1.7.0 to 1.7.1.","status":"published","published":"2026-07-10T22:16:44.953Z","modified":"2026-10-25T15:10:00.147Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:28.771746Z"}],"osv":[{"id":"CVE-2026-58587","title":"Drupal Canvas - Moderately critical - Improper validation - SA-CONTRIB-2026-065","description":"Improper Neutralization of Input During Web Page Generation (\"Cross-site Scripting\") vulnerability in Drupal Drupal Canvas allows Cross-Site Scripting (XSS). This issue affects Drupal Canvas versions: from 0.0.0 to 1.4.2, from 1.5.0 to 1.5.2, from 1.6.0 to 1.6.1, from 1.7.0 to 1.7.1.","status":"published","published":"2026-07-10T21:46:15.116Z","modified":"2026-10-28T02:30:47.703227811Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:45:12.496548Z"},{"id":"DRUPAL-CONTRIB-2026-065","description":"The Canvas AI submodule allows you to upload image files via a custom API to use within the AI web chat.\n\nThese file uploads are insufficiently validated before being written to Drupal's temporary directory. In some cases, this may lead to cross-site scripting (XSS).","status":"published","published":"2026-07-01T17:20:16Z","modified":"2026-09-10T03:45:42.444630082Z","updated_at":"2026-11-02T15:46:13.900249Z"}]}}