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Users of Advanced Custom Fields plugin for WordPress are being urged to update version 6.1.6 following the discovery of a security flaw.
The issue, assigned the identifier CVE-2023-30777, relates to a case of reflected cross-site scripting (XSS) that could be abused to inject arbitrary executable scripts into otherwise benign websites.
The plugin, which is available both as a free and pro version, has over two million active installations. The issue was discovered and reported to the maintainers on May 2, 2023.