Description

An issue was discovered in Joomla! before 3.9.15. Inadequate escaping of usernames allows XSS attacks in com_actionlogs.

Remediation

References

CVE-2020-8421

Related Vulnerabilities

OpenSSL Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') Vulnerability (CVE-2021-3711)

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Moodle Improper Privilege Management Vulnerability (CVE-2019-3849)

WordPress 4.2.x Same Origin Method Execution (SOME) Vulnerability (4.2 - 4.2.7)

MySQL CVE-2018-3080 Vulnerability (CVE-2018-3080)

Severity

Medium

Classification

CVE-2020-8421 CWE-707 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Tags

Missing Update Known Vulnerabilities