A vulnerability, which was classified as problematic , was found in wpdevteam BetterDocs Plugin up to 4.5.3 on WordPress. This issue affects the function CategorySlateLayout::render of the component Block Attribute Handler . Such manipulation of the argument blockId leads to cross site scripting. This vulnerability is uniquely identified as CVE-2026-12157 . The attack can be launched remotely. No exploit exists. You should upgrade the affected component.