{"id":"CVE-2017-17454","aliases":["EUVD-2017-8618","GHSA-6q4p-5jg7-p386"],"status":"published","title":"Mahara 16.10 before 16.10.7 and 17.04 before 17.04.5 and 17.10 before 17.10.2 have a Cross Site...","description":"Mahara 16.10 before 16.10.7 and 17.04 before 17.04.5 and 17.10 before 17.10.2 have a Cross Site Scripting (XSS) vulnerability when a user enters invalid UTF-8 characters. These are now going to be discarded in Mahara along with NULL characters and invalid Unicode characters. Mahara will also avoid direct $_GET and $_POST usage where possible, and instead use param_exists() and the correct param_*() function to fetch the expected value.","severity":{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00692,"percentile":0.53151,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2018-02-20T22:00:00Z","modified":"2026-10-24T10:31:02Z","products":[{"vendor":"mahara","product":"mahara"}],"references":[{"url":"https://mahara.org/interaction/forum/topic.php?id=8149","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://reviews.mahara.org/#/c/8191/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://bugs.launchpad.net/mahara/+bug/1732987","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-17454"},{"url":"https://github.com/advisories/GHSA-6q4p-5jg7-p386"}],"sources":{"cve":[{"id":"CVE-2017-17454","description":"Mahara 16.10 before 16.10.7 and 17.04 before 17.04.5 and 17.10 before 17.10.2 have a Cross Site Scripting (XSS) vulnerability when a user enters invalid UTF-8 characters. These are now going to be discarded in Mahara along with NULL characters and invalid Unicode characters. Mahara will also avoid direct $_GET and $_POST usage where possible, and instead use param_exists() and the correct param_*() function to fetch the expected value.","status":"published","published":"2018-02-20T22:00:00Z","modified":"2024-08-05T20:51:31.687Z","updated_at":"2026-11-02T14:33:18.248329Z"}],"euvd":[{"id":"EUVD-2017-8618","description":"Mahara 16.10 before 16.10.7 and 17.04 before 17.04.5 and 17.10 before 17.10.2 have a Cross Site Scripting (XSS) vulnerability when a user enters invalid UTF-8 characters. These are now going to be discarded in Mahara along with NULL characters and invalid Unicode characters. Mahara will also avoid direct $_GET and $_POST usage where possible, and instead use param_exists() and the correct param_*() function to fetch the expected value.","status":"published","published":"2018-02-20T22:00:00Z","modified":"2024-08-05T20:51:31Z","updated_at":"2026-11-03T02:23:10.087185Z"}],"ghsa":[{"id":"GHSA-6q4p-5jg7-p386","title":"Mahara 16.10 before 16.10.7 and 17.04 before 17.04.5 and 17.10 before 17.10.2 have a Cross Site...","description":"Mahara 16.10 before 16.10.7 and 17.04 before 17.04.5 and 17.10 before 17.10.2 have a Cross Site Scripting (XSS) vulnerability when a user enters invalid UTF-8 characters. These are now going to be discarded in Mahara along with NULL characters and invalid Unicode characters. Mahara will also avoid direct $_GET and $_POST usage where possible, and instead use param_exists() and the correct param_*() function to fetch the expected value.","status":"published","published":"2022-05-14T03:37:35Z","modified":"2023-02-02T05:08:14Z","cvss":[{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:52:41.978099Z"}],"nvd":[{"id":"CVE-2017-17454","description":"Mahara 16.10 before 16.10.7 and 17.04 before 17.04.5 and 17.10 before 17.10.2 have a Cross Site Scripting (XSS) vulnerability when a user enters invalid UTF-8 characters. These are now going to be discarded in Mahara along with NULL characters and invalid Unicode characters. Mahara will also avoid direct $_GET and $_POST usage where possible, and instead use param_exists() and the correct param_*() function to fetch the expected value.","status":"published","published":"2018-02-20T22:29:00.223Z","modified":"2026-06-17T01:10:49.253Z","cvss":[{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:04:15.877386Z"}],"osv":[{"id":"CVE-2017-17454","description":"Mahara 16.10 before 16.10.7 and 17.04 before 17.04.5 and 17.10 before 17.10.2 have a Cross Site Scripting (XSS) vulnerability when a user enters invalid UTF-8 characters. These are now going to be discarded in Mahara along with NULL characters and invalid Unicode characters. Mahara will also avoid direct $_GET and $_POST usage where possible, and instead use param_exists() and the correct param_*() function to fetch the expected value.","status":"published","published":"2018-02-20T22:29:00.223Z","modified":"2026-10-24T10:31:02.886729735Z","cvss":[{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:04.853379Z"}]}}