{"id":"CVE-2021-21313","aliases":["EUVD-2021-8665","GHSA-h4hj-mrpg-xfgx","UBUNTU-CVE-2021-21313"],"status":"published","title":"XSS on tabs","description":"GLPI is open source software which stands for Gestionnaire Libre de Parc Informatique and it is a Free Asset and IT Management Software package. In GLPI before verison 9.5.4, there is a vulnerability in the /ajax/common.tabs.php endpoint, indeed, at least two parameters _target and id are not properly sanitized. Here are two payloads (due to two different exploitations depending on which parameter you act) to exploit the vulnerability:/ajax/common.tabs.php?_target=javascript:alert(document.cookie)\u0026_itemtype=DisplayPreference\u0026_glpi_tab=DisplayPreference$2\u0026id=258\u0026displaytype=Ticket (Payload triggered if you click on the button). /ajax/common.tabs.php?_target=/front/ticket.form.php\u0026_itemtype=Ticket\u0026_glpi_tab=Ticket$1\u0026id=(){};(function%20(){alert(document.cookie);})();function%20a\u0026#.","severity":{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00919,"percentile":0.60732,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-74","CWE-79"],"published":"2021-03-03T19:25:13Z","modified":"2026-10-20T10:54:28Z","affected":[{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"glpi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.84.8+dfsg.1-1","0.84.8+dfsg.1-1ubuntu1"]}],"products":[{"vendor":"glpi-project","product":"glpi"}],"references":[{"url":"https://github.com/glpi-project/glpi/security/advisories/GHSA-h4hj-mrpg-xfgx","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory","report"]},{"url":"https://github.com/glpi-project/glpi/releases/tag/9.5.4","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory","advisory","report"]},{"url":"https://ubuntu.com/security/CVE-2021-21313","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21313","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-21313","title":"XSS on tabs","description":"GLPI is open source software which stands for Gestionnaire Libre de Parc Informatique and it is a Free Asset and IT Management Software package. In GLPI before verison 9.5.4, there is a vulnerability in the /ajax/common.tabs.php endpoint, indeed, at least two parameters _target and id are not properly sanitized. Here are two payloads (due to two different exploitations depending on which parameter you act) to exploit the vulnerability:/ajax/common.tabs.php?_target=javascript:alert(document.cookie)\u0026_itemtype=DisplayPreference\u0026_glpi_tab=DisplayPreference$2\u0026id=258\u0026displaytype=Ticket (Payload triggered if you click on the button). /ajax/common.tabs.php?_target=/front/ticket.form.php\u0026_itemtype=Ticket\u0026_glpi_tab=Ticket$1\u0026id=(){};(function%20(){alert(document.cookie);})();function%20a\u0026#.","status":"published","published":"2021-03-03T19:25:13Z","modified":"2024-08-03T18:09:15.301Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:33:00.488332Z"}],"euvd":[{"id":"EUVD-2021-8665","description":"GLPI is open source software which stands for Gestionnaire Libre de Parc Informatique and it is a Free Asset and IT Management Software package. In GLPI before verison 9.5.4, there is a vulnerability in the /ajax/common.tabs.php endpoint, indeed, at least two parameters _target and id are not properly sanitized. Here are two payloads (due to two different exploitations depending on which parameter you act) to exploit the vulnerability:/ajax/common.tabs.php?_target=javascript:alert(document.cookie)\u0026_itemtype=DisplayPreference\u0026_glpi_tab=DisplayPreference$2\u0026id=258\u0026displaytype=Ticket (Payload triggered if you click on the button). /ajax/common.tabs.php?_target=/front/ticket.form.php\u0026_itemtype=Ticket\u0026_glpi_tab=Ticket$1\u0026id=(){};(function%20(){alert(document.cookie);})();function%20a\u0026#.","status":"published","published":"2021-03-03T19:25:13Z","modified":"2024-08-03T18:09:15Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T03:25:06.347262Z"}],"nvd":[{"id":"CVE-2021-21313","description":"GLPI is open source software which stands for Gestionnaire Libre de Parc Informatique and it is a Free Asset and IT Management Software package. In GLPI before verison 9.5.4, there is a vulnerability in the /ajax/common.tabs.php endpoint, indeed, at least two parameters _target and id are not properly sanitized. Here are two payloads (due to two different exploitations depending on which parameter you act) to exploit the vulnerability:/ajax/common.tabs.php?_target=javascript:alert(document.cookie)\u0026_itemtype=DisplayPreference\u0026_glpi_tab=DisplayPreference$2\u0026id=258\u0026displaytype=Ticket (Payload triggered if you click on the button). /ajax/common.tabs.php?_target=/front/ticket.form.php\u0026_itemtype=Ticket\u0026_glpi_tab=Ticket$1\u0026id=(){};(function%20(){alert(document.cookie);})();function%20a\u0026#.","status":"published","published":"2021-03-03T20:15:12.2Z","modified":"2026-06-17T03:35:16.477Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"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":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-74","CWE-79"],"updated_at":"2026-11-02T14:06:50.399901Z"}],"osv":[{"id":"CVE-2021-21313","description":"GLPI is open source software which stands for Gestionnaire Libre de Parc Informatique and it is a Free Asset and IT Management Software package. In GLPI before verison 9.5.4, there is a vulnerability in the /ajax/common.tabs.php endpoint, indeed, at least two parameters _target and id are not properly sanitized. Here are two payloads (due to two different exploitations depending on which parameter you act) to exploit the vulnerability:/ajax/common.tabs.php?_target=javascript:alert(document.cookie)\u0026_itemtype=DisplayPreference\u0026_glpi_tab=DisplayPreference$2\u0026id=258\u0026displaytype=Ticket (Payload triggered if you click on the button). /ajax/common.tabs.php?_target=/front/ticket.form.php\u0026_itemtype=Ticket\u0026_glpi_tab=Ticket$1\u0026id=(){};(function%20(){alert(document.cookie);})();function%20a\u0026#.","status":"published","published":"2021-03-03T20:15:12.2Z","modified":"2026-10-20T10:54:28.213018275Z","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":"2026-11-02T15:44:18.004149Z"},{"id":"UBUNTU-CVE-2021-21313","description":"GLPI is open source software which stands for Gestionnaire Libre de Parc Informatique and it is a Free Asset and IT Management Software package. In GLPI before verison 9.5.4, there is a vulnerability in the /ajax/common.tabs.php endpoint, indeed, at least two parameters _target and id are not properly sanitized. Here are two payloads (due to two different exploitations depending on which parameter you act) to exploit the vulnerability:/ajax/common.tabs.php?_target=javascript:alert(document.cookie)\u0026_itemtype=DisplayPreference\u0026_glpi_tab=DisplayPreference$2\u0026id=258\u0026displaytype=Ticket (Payload triggered if you click on the button). /ajax/common.tabs.php?_target=/front/ticket.form.php\u0026_itemtype=Ticket\u0026_glpi_tab=Ticket$1\u0026id=(){};(function%20(){alert(document.cookie);})();function%20a\u0026#.","status":"published","published":"2021-03-03T20:15:00Z","modified":"2025-10-24T04:50:06Z","cvss":[{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium"},{"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":"2026-11-02T15:54:26.29421Z"}]}}