{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-0555", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "state": "PUBLISHED", "assignerShortName": "Wordfence", "dateReserved": "2026-01-01T20:56:47.477Z", "datePublished": "2026-02-07T08:26:38.893Z", "dateUpdated": "2026-04-08T17:06:48.770Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-04-08T17:06:48.770Z"}, "affected": [{"vendor": "premmerce", "product": "Premmerce", "versions": [{"version": "0", "status": "affected", "lessThanOrEqual": "1.3.20", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The Premmerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'premmerce_wizard_actions' AJAX endpoint in all versions up to, and including, 1.3.20. This is due to missing capability checks and insufficient input sanitization and output escaping on the `state` parameter. This makes it possible for authenticated attackers, with subscriber level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page (the Premmerce Wizard admin page)."}], "title": "Premmerce <= 1.3.20 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'premmerce_wizard_actions' AJAX Endpoint", "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/90b2a644-19a0-43a1-8ff6-7486d7ef29b3?source=cve"}, {"url": "https://plugins.trac.wordpress.org/browser/premmerce/tags/1.3.20/src/Admin/Admin.php?marks=41#L41"}, {"url": "https://plugins.trac.wordpress.org/browser/premmerce/tags/1.3.20/src/Admin/Handlers/WizardHandler.php?marks=42,50,52#L42"}, {"url": "https://plugins.trac.wordpress.org/browser/premmerce/tags/1.3.20/src/Api/WizardApi.php?marks=38#L38"}, {"url": "https://plugins.trac.wordpress.org/browser/premmerce/tags/1.3.20/views/admin/tabs/wizard.php?marks=30#L30"}, {"url": "https://plugins.trac.wordpress.org/changeset/3464825/"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "cweId": "CWE-79", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "baseScore": 6.4, "baseSeverity": "MEDIUM"}}], "credits": [{"lang": "en", "type": "finder", "value": "Athiwat Tiprasaharn"}], "timeline": [{"time": "2025-12-24T00:00:00.000Z", "lang": "en", "value": "Discovered"}, {"time": "2026-02-06T20:25:58.000Z", "lang": "en", "value": "Disclosed"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-02-11T15:37:24.102754Z", "id": "CVE-2026-0555", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-11T15:46:04.765Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "The Premmerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'premmerce_wizard_actions' AJAX endpoint in all versions up to, and including, 1.3.20. This is due to missing capability checks and insufficient input sanitization and output escaping on the `state` parameter. This makes it possible for authenticated attackers, with subscriber level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page (the Premmerce Wizard admin page)."}, {"lang": "es", "value": "El plugin Premmerce para WordPress es vulnerable a cross-site scripting almacenado a trav\u00e9s del endpoint AJAX 'premmerce_wizard_actions' en todas las versiones hasta la 1.3.20, inclusive. Esto se debe a la falta de comprobaciones de capacidad y a una sanitizaci\u00f3n de entrada y un escape de salida insuficientes en el par\u00e1metro 'state'. Esto hace posible que atacantes autenticados, con acceso de nivel de suscriptor y superior, inyecten scripts web arbitrarios en p\u00e1ginas que se ejecutar\u00e1n cada vez que un usuario acceda a una p\u00e1gina inyectada (la p\u00e1gina de administraci\u00f3n del Asistente de Premmerce)."}], "id": "CVE-2026-0555", "lastModified": "2026-04-15T00:35:42.020", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 2.7, "source": "security@wordfence.com", "type": "Secondary"}]}, "published": "2026-02-07T09:15:59.733", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/premmerce/tags/1.3.20/src/Admin/Admin.php?marks=41#L41"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/premmerce/tags/1.3.20/src/Admin/Handlers/WizardHandler.php?marks=42,50,52#L42"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/premmerce/tags/1.3.20/src/Api/WizardApi.php?marks=38#L38"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/premmerce/tags/1.3.20/views/admin/tabs/wizard.php?marks=30#L30"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/changeset/3464825/"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/90b2a644-19a0-43a1-8ff6-7486d7ef29b3?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-15T21:20:43.312670+00:00", "value": {"mitigation_remediation": ["Update the Premmerce plugin to the latest available version (\u22651.3.21) to remove the vulnerable endpoint.", "If an update cannot be applied immediately, disable the premmerce_wizard_actions AJAX endpoint for non\u2011administrator roles by adding a capability check or removing the action within the plugin\u2019s code.", "Implement a site\u2011wide XSS protection layer, such as a security plugin that enforces output escaping or adds content filtering, to mitigate stored XSS in other parts of the site."], "summary": {"action": "Immediate Patch", "impact": "Stored Cross\u2011Site Scripting (XSS)"}, "threat_synthesis": {"affected_systems": "All ranks of the Premmerce plugin up to and including version 1.3.20 are affected. The issue resides in the admin wizard component of the premmerce:Premmerce product for WordPress. Sites that host this plugin and allow subscriber\u2011level or higher users to access the wizard are impacted. Updating to a later release that removes the vulnerable endpoint eliminates the flaw.", "description_and_impact": "The Premmerce plugin for WordPress contains a stored XSS vulnerability triggered through the premmerce_wizard_actions AJAX endpoint. The flaw originates from a lack of capability checks and insufficient input sanitization and output escaping on the state parameter. Authenticated users with subscriber level or higher privileges can inject arbitrary scripts that are persisted on the Premmerce Wizard admin page; any administrator who visits the page will have the malicious code executed.", "risk_and_exploitability": "The CVSS base score of 6.4 denotes moderate severity, while the EPSS score of less than 1% indicates a low likelihood of exploitation in recent observations. The vulnerability is not yet listed in CISA\u2019s KEV catalog. Exploitation requires the attacker to be a logged\u2011in user with at least subscriber privileges and to interact with the wizard page; it does not grant remote code execution or privilege escalation beyond that role. Consequently, the risk is moderate but limited to sites that keep the legacy plugin and expose the wizard to non\u2011administrator users."}}}}, "created": "2026-02-09T10:44:35.068558+00:00", "updated": "2026-04-15T21:30:13.891077+00:00", "vendors": ["premmerce", "premmerce$PRODUCT$premmerce", "wordpress", "wordpress$PRODUCT$wordpress"]}