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WordPress Multiple Plugins Stored Cross-Site Scripting Vulnerability - 20240506001

Overview

WordPress Core is vulnerable to Stored Cross-Site Scripting via user display names in the Avatar block in various versions up to 6.5.2 due to insufficient output escaping on the display name. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. In addition, it also makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that have the comment block present and display the comment author's avatar.

What is vulnerable?

Product(s) Affected CVE Severity CVSS
WordPress from 6.0 through 6.0.7
WordPress from 6.1 through 6.1.5
WordPress from 6.2 through 6.2.4
WordPress from 6.3 through 6.3.3
WordPress from 6.4 through 6.4.3
WordPress from 6.5 through 6.5.1
CVE-2024-4439 High 7.2
WordPress from n/a through 5.7 CVE-2023-40000 High 8.3

What has been observed?

There is no evidence of exploitation affecting Western Australian Government networks at the time of publishing.

Recommendation

The WA SOC recommends administrators apply the solutions as per vendor instructions to all affected devices within expected timeframe of one month... (refer Patch Management):

Additional References