PT-2026-89753 · Comesio · Relevanssi – A Better Search
CVSS v3.1
6.1
Média
| Vetor | AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
The Relevanssi – A Better Search plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in versions up to, and including, 4.28.1 via the 's', 'post types', and 'orderby' request parameters. This is due to insufficient input sanitization and output escaping in the relevanssi debug array() function in lib/debug.php, which dumps user-supplied query variables through print r() inside a
block without HTML escaping. The debug path is enabled by supplying the relevanssi debug=on request parameter when the administrator has previously enabled the 'Debugging mode' setting; the gate itself is a configuration check with no capability, nonce, or logged-in check (the vendor explicitly suppresses nonce verification on that line). This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a specially crafted link.
Correção
XSS
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Relevanssi – A Better Search