WordPress Core < 6.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Embed Discovery
Strategic Overview
4.1.38 – < 6.2.1 · 22 branchesN/AVulnerability Overview
WordPress Core is vulnerable to stored Cross-Site Scripting in versions up to, and including, 6.2, due to insufficient validation of the protocol in the response when processing oEmbed discovery. This makes it possible for authenticated attackers with contributor-level and above permissions to use a crafted oEmbed payload at a remote URL to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Technical Analysis
REMEDIATION: Update to one of the following versions, or a newer patched version: 4.1.38, 4.2.35, 4.3.31, 4.4.30, 4.5.29, 4.6.26, 4.7.26, 4.8.22, 4.9.23, 5.0.19, 5.1.16, 5.2.18, 5.3.15, 5.4.13, 5.5.12, 5.6.11, 5.7.9, 5.8.7, 5.9.6, 6.0.4, 6.1.2, 6.2.1 --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
External References
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C