{"cve":"CVE-2021-21494","nvd":{"published":"2021-01-04T03:15:13.387","modified":"2026-06-17T03:35:40.947","status":"Modified","description":"MK-AUTH through 19.01 K4.9 allows XSS via the admin/logs_ajax.php tipo parameter. An attacker can leverage this to read the centralmka2 (session token) cookie, which is not set to HTTPOnly.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","score":4.8},"cwes":["CWE-732"],"references":["http://mk-auth.com.br/","https://gist.github.com/alacerda/380b8923e36a29a02ba1457c1eb3ec2f","http://mk-auth.com.br/","https://gist.github.com/alacerda/380b8923e36a29a02ba1457c1eb3ec2f"],"products":["mk-auth:mk-auth"],"source":"nvd","synced_at":"2026-10-19T21:12:09.559580076+00:00"},"epss":{"cve":"CVE-2021-21494","score":0.00518,"percentile":0.44083,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}