CVE-2023-46069: 
WordPress vulnerability analysis and mitigation

CVE-2023-46069 is an Authenticated Stored Cross-Site Scripting (XSS) vulnerability affecting the WordPress Ajax Archive Calendar plugin versions 2.6.7 and below. The vulnerability was discovered by Ngô Thiên An (ancorn_ from VNPT-VCI) on September 19, 2023, and was publicly disclosed on October 16, 2023. This security issue affects websites using the vulnerable versions of the Ajax Archive Calendar WordPress plugin (Patchstack Advisory).

The vulnerability is classified as a Cross-Site Scripting (XSS) issue, falling under the OWASP Top 10 category A3: Injection. It has received a CVSS v3.1 base score of 6.5 (Medium) with the vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L. The vulnerability requires contributor-level privileges or higher to exploit (Patchstack Advisory).

When exploited, this vulnerability could allow malicious actors to inject malicious scripts, including redirects and advertisements, as well as other HTML payloads into the website. These injected scripts would be executed when visitors access the affected site (Patchstack Advisory).

The vulnerability has been fixed in version 2.6.8 of the Ajax Archive Calendar plugin. Users are advised to update to version 2.6.8 or later immediately. For users unable to update immediately, Patchstack has issued a virtual patch to mitigate this issue by blocking potential attacks (Patchstack Advisory).