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{}

{"analysis": {"en": {"generated_at": "2026-04-21T00:27:55.157126+00:00", "value": {"mitigation_remediation": ["Update the Header and Footer Scripts plugin to any version newer than 2.3.0 to remove the flaw", "If the plugin cannot be updated, deactivate it on the site until a patched version is available", "Restrict Contributor and higher roles from editing the _inpost_head_script parameter by adjusting WordPress role capabilities or by disabling the script editing feature in the plugin settings", "Locate and delete any stored malicious payloads in the _inpost_head_script option to eliminate already\u2011deployed code"], "summary": {"action": "Patch immediately", "impact": "Stored cross\u2011site scripting that allows arbitrary JavaScript to run in browsers of any user who views a page with the injected script"}, "threat_synthesis": {"affected_systems": "WordPress sites that have installed the anand_kumar:Header and Footer Scripts plugin, in any version up to and including 2.3.0. The flaw is exploitable by any authenticated user with Contributor level or higher access on the site.\n", "description_and_impact": "The Header and Footer Scripts plugin for WordPress contains a stored XSS flaw that is triggered through the _inpost_head_script parameter. Insufficient input sanitization and output escaping enable an attacker to store malicious JavaScript in the plugin's configuration, which is then rendered into every page that includes the script. This vulnerability allows the injection of arbitrary client\u2011side code that can execute in the context of any visitor to the affected page.\n", "risk_and_exploitability": "With a CVSS score of 6.4 the vulnerability is rated moderate. The EPSS score of less than 1% indicates a low probability that exploit code will be widely deployed at present. The flaw is not listed in the CISA KEV catalog. An attacker needs a valid Contributor+ account; once authenticated, they can inject script via the plugin\u2019s configuration interface, causing that script to execute automatically for each user who views the processed page."}}}}, "created": "2026-01-09T13:23:51.007854+00:00", "updated": "2026-04-21T00:30:22.978988+00:00", "vendors": ["anand_kumar", "anand_kumar$PRODUCT$header_and_footer_scripts", "wordpress", "wordpress$PRODUCT$wordpress"]}