漏洞描述
WordPress before 5.1.1 does not properly filter comment content, leading to Remote Code Execution by unauthenticated users in a default configuration. This occurs because CSRF protection is mishandled, and because Search Engine Optimization of A elements is performed incorrectly, leading to XSS. The XSS results in administrative access, which allows arbitrary changes to .php files. This is related to wp-admin/includes/ajax-actions.php and wp-includes/comment.php.
影响产品
修复建议
建议关注厂商安全公告，及时升级至已修复版本，并结合实际资产暴露情况采取缓解措施。
参考链接
wpvulndb.comhttps://wpvulndb.com/vulnerabilities/9230↗lists.debian.orghttps://lists.debian.org/debian-lts-announce/2019/03/msg00044.html↗blog.ripstech.comhttps://blog.ripstech.com/2019/wordpress-csrf-to-rce/↗www.securityfocus.comhttp://www.securityfocus.com/bid/107411↗wordpress.orghttps://wordpress.org/support/wordpress-version/version-5-1-1/↗github.comhttps://github.com/WordPress/WordPress/commit/0292de60ec78c5a44956765189403654fe4d080b↗wordpress.orghttps://wordpress.org/news/2019/03/wordpress-5-1-1-security-and-maintenance-release/↗www.debian.orghttps://www.debian.org/security/2020/dsa-4677↗