CVE-2026-2277

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "rexCrawler", "vendor": "larsdrasmussen", "versions": [{"lessThanOrEqual": "1.0.15", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The rexCrawler plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'url' and 'regex' parameters in the search-pattern tester page in all versions up to, and including, 1.0.15 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick an administrator into performing an action such as clicking on a link. This only affects multi-site installations and installations where unfiltered_html has been disabled."}, {"lang": "es", "value": "El plugin rexCrawler para WordPress es vulnerable a cross-site scripting reflejado a trav\u00e9s de los par\u00e1metros 'url' y 'regex' en la p\u00e1gina del probador de patrones de b\u00fasqueda en todas las versiones hasta la 1.0.15, inclusive, debido a una sanitizaci\u00f3n de entrada y un escape de salida insuficientes. Esto hace posible que atacantes no autenticados inyecten scripts web arbitrarios en p\u00e1ginas que se ejecutan si logran enga\u00f1ar a un administrador para que realice una acci\u00f3n como hacer clic en un enlace. Esto solo afecta a las instalaciones multisitio y a las instalaciones donde se ha deshabilitado unfiltered_html."}], "id": "CVE-2026-2277", "lastModified": "2026-06-17T10:30:42.570", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "security@wordfence.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-2277", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-23T15:07:47.542171Z", "version": "2.0.3"}}]}, "published": "2026-03-21T04:16:57.803", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/rexcrawler/tags/1.0.15/admin_regex_test.php#L25"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/rexcrawler/tags/1.0.15/admin_regex_test.php#L29"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/rexcrawler/trunk/admin_regex_test.php#L25"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/rexcrawler/trunk/admin_regex_test.php#L29"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/2a17f466-bc4b-4668-8ff9-e8b316e3b5b7?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.0.15]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "rexCrawler", "source": "cna", "vendor": "larsdrasmussen"}, "product": "rexcrawler", "vendor": "larsdrasmussen"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": null}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "wordpress", "vendor": "wordpress"}], "analysis": {"en": {"generated_at": "2026-03-21T06:40:42.466668+00:00", "value": {"mitigation_remediation": ["Update the rexCrawler plugin to a version newer than 1.0.15.", "If upgrading is not possible, restrict or remove access to the admin_regex_test.php page so that only trusted administrators can use it.", "Regularly audit the site for other XSS\u2011related issues and ensure input sanitization and output escaping are correctly applied."], "summary": {"action": "Patch", "impact": "Reflected XSS"}, "threat_synthesis": {"affected_systems": "The affected product is the rexCrawler WordPress plugin by larsdrasmussen, with all versions up to and including 1.0.15 impacted. Administrators should check whether their site runs any of these unstable releases and ensure they are on a supported version.", "description_and_impact": "The vulnerability is a reflected XSS that allows attackers to inject scripts through the 'url' and 'regex' parameters on the admin_regex_test.php page in the rexCrawler plugin. This flaw affects WordPress multisite installations and those with unfiltered_html disabled, enabling execution of arbitrary scripts in admin pages after an administrator clicks a crafted link.", "risk_and_exploitability": "The CVSS base score is 6.1, indicating medium severity. No EPSS data is provided and the vulnerability is not listed in the CISA KEV catalog. Exploitation requires an attacker to prompt a legitimate administrator to access the vulnerable endpoint, typically through social engineering or phishing with a malicious link, after which the unsanitized parameters allow injection of malicious JavaScript."}}}}, "created": "2026-03-23T09:50:53.134908+00:00", "updated": "2026-03-25T14:42:27.574374+00:00", "vendors": ["larsdrasmussen", "larsdrasmussen$PRODUCT$rexcrawler", "wordpress", "wordpress$PRODUCT$wordpress"]}