{"id":"CVE-2021-29399","aliases":["EUVD-2021-16034","GHSA-994w-cp3m-8qh7"],"status":"published","title":"XMB is vulnerable to cross-site scripting (XSS) due to inadequate filtering of BBCode input. This...","description":"XMB is vulnerable to cross-site scripting (XSS) due to inadequate filtering of BBCode input. This bug affects all versions of XMB. All XMB installations must be updated to versions 1.9.12.03 or 1.9.11.16.","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":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00907,"percentile":0.60356,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-04-19T11:00:27Z","modified":"2026-06-17T03:47:35Z","products":[{"vendor":"xmbforum2","product":"xmb"}],"references":[{"url":"https://www.xmbforum2.com/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://docs.xmbforum2.com/index.php?title=Security_Issue_History","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://forums.xmbforum2.com/viewthread.php?tid=777105","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-29399"},{"url":"https://github.com/advisories/GHSA-994w-cp3m-8qh7"}],"sources":{"cve":[{"id":"CVE-2021-29399","description":"XMB is vulnerable to cross-site scripting (XSS) due to inadequate filtering of BBCode input. This bug affects all versions of XMB. All XMB installations must be updated to versions 1.9.12.03 or 1.9.11.16.","status":"published","published":"2021-04-19T11:00:27Z","modified":"2024-08-03T22:02:51.889Z","updated_at":"2026-11-02T14:33:06.32268Z"}],"euvd":[{"id":"EUVD-2021-16034","description":"XMB is vulnerable to cross-site scripting (XSS) due to inadequate filtering of BBCode input. This bug affects all versions of XMB. All XMB installations must be updated to versions 1.9.12.03 or 1.9.11.16.","status":"published","published":"2021-04-19T11:00:27Z","modified":"2024-08-03T22:02:51Z","updated_at":"2026-11-03T03:24:45.000012Z"}],"ghsa":[{"id":"GHSA-994w-cp3m-8qh7","title":"XMB is vulnerable to cross-site scripting (XSS) due to inadequate filtering of BBCode input. This...","description":"XMB is vulnerable to cross-site scripting (XSS) due to inadequate filtering of BBCode input. This bug affects all versions of XMB. All XMB installations must be updated to versions 1.9.12.03 or 1.9.11.16.","status":"published","published":"2022-05-24T17:47:49Z","modified":"2023-01-29T05:06:00Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:45:55.677123Z"}],"nvd":[{"id":"CVE-2021-29399","description":"XMB is vulnerable to cross-site scripting (XSS) due to inadequate filtering of BBCode input. This bug affects all versions of XMB. All XMB installations must be updated to versions 1.9.12.03 or 1.9.11.16.","status":"published","published":"2021-04-19T12:15:18.553Z","modified":"2026-06-17T03:47:35.487Z","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":"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-79"],"updated_at":"2026-11-02T14:06:52.03307Z"}]}}