The WP Recipe Maker plugin for WordPress is vulnerable to Arbitrary Shortcode Execution in all versions up to, and including, 10.8.1. The vulnerability exists because `WPRM_Metadata::sanitize_metadata()` recursively calls `do_shortcode()` on every scalar field of the recipe's structured metadata array — including the `reviewBody` field, which is populated verbatim from the `comment_content` of approved `wprm-comment-rating` comments — without sanitizing or stripping shortcode tokens before execution; the subsequent `wp_strip_all_tags()` and `strip_shortcodes()` calls operate only on the output string after execution has already fully occurred, providing no protection against server-side shortcode invocation. This makes it possible for unauthenticated attackers to execute arbitrary registered WordPress shortcodes server-side on every recipe page render, causing shortcode output — such as attachment captions, private post fields, or other data exposed by installed shortcodes — to be embedded in the page's JSON-LD `reviewBody` metadata and disclosed to all visitors who load the recipe page. Successful exploitation requires the attacker's rated comment to pass the site's comment approval threshold, either via auto-approval or moderator action, before the injected shortcode begins executing on page loads.
[POC] CVE-2026-89274 — By-Poloss..-.CVE-2026-89274
Unauthenticated Arbitrary Shortcode Execution
[POC] CVE-2026-89274 — CVE-2026-89274
PoC for CVE-2026-89274: unauthenticated arbitrary shortcode execution in WP Recipe Maker ≤10.8.1 via recipe rating comments (JSON-LD). Python check/exploit/verify.
PoC: CVE-2026-89274-wp-recipe-maker-poc
CVE-2026-89274 — WP Recipe Maker <= 10.8.1 arbitrary shortcode execution via rating-comment reviewBody (CVSS 9.1): Docker validation lab with vulnerable (10.8.1) vs patched (10.8.2) controls, Python PoC proving server-side shortcode execution in recipe JSON-LD, nuclei version screen. Authorized security research only.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
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