Simple Link Directory through 9.0.4 interpolates the sld_no_results_found option into a JavaScript string literal without encoding. Because sanitize_text_field leaves quotes intact, a stored payload breaks out of the string and runs script for every page visitor.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
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