CVE-2025-11877

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "User Activity Log", "vendor": "solwininfotech", "versions": [{"lessThanOrEqual": "2.2", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The User Activity Log plugin is vulnerable to a limited options update in versions up to, and including, 2.2. The failed-login handler 'ual_shook_wp_login_failed' lacks a capability check and writes failed usernames directly into update_option() calls. This makes it possible for unauthenticated attackers to push select site options from 0 to a non-zero value, allowing them to reopen registration or corrupt options like 'wp_user_roles', breaking wp-admin access. CVE-2025-13471 appears to be a duplicate of this CVE."}, {"lang": "es", "value": "El plugin User Activity Log es vulnerable a una actualizaci\u00f3n limitada de opciones en versiones hasta la 2.2, inclusive. El manejador de inicios de sesi\u00f3n fallidos 'ual_shook_wp_login_failed' carece de una verificaci\u00f3n de capacidad y escribe los nombres de usuario fallidos directamente en las llamadas a update_option(). Esto permite a atacantes no autenticados empujar opciones de sitio seleccionadas de 0 a un valor distinto de cero, permiti\u00e9ndoles reabrir el registro o corromper opciones como 'wp_user_roles', rompiendo el acceso a wp-admin."}], "id": "CVE-2025-11877", "lastModified": "2026-06-17T08:31:20.177", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security@wordfence.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-11877", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-01-07T14:47:34.082471Z", "version": "2.0.3"}}]}, "published": "2026-01-07T12:16:46.400", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/user-activity-log/trunk/user-functions.php"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/24225f47-cec2-4270-88f0-8696ebfb7168?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-22T20:16:40.386189+00:00", "value": {"mitigation_remediation": ["Update the User Activity Log plugin to a version newer than 2.2.", "If an update is not available, disable or delete the plugin to prevent unauthorized option changes.", "Ensure WordPress core and all other plugins are also kept up to date to mitigate related weaknesses."], "summary": {"action": "Apply Patch", "impact": "Unauthenticated configuration tampering"}, "threat_synthesis": {"affected_systems": "WordPress sites running the User Activity Log plugin by solwininfotech, versions 2.2 or older.", "description_and_impact": "The User Activity Log plugin allows an unauthenticated user to execute a limited options update by triggering the failed\u2011login handler. The missing capability check causes the handler to write usernames directly into the WordPress options table via update_option(). This enables the attacker to change critical options such as 'wp_user_roles' or enable user registration, effectively breaking wp\u2011admin access or allowing new accounts to be created. The CVSS score of 7.5 reflects the significant impact on confidentiality and integrity of the site configuration.", "risk_and_exploitability": "The EPSS score is below 1\u202f% and the vulnerability is not listed in CISA's KEV catalog, indicating a currently low probability of exploitation. Nevertheless, the lack of authentication and permission checks makes the attack readily possible on any exposed instance. Even without a zero\u2011day exploit, standard HTTP requests that induce a failed login can be used to modify options."}}}}, "created": "2026-01-08T09:49:51.677079+00:00", "updated": "2026-04-22T20:30:26.766574+00:00", "vendors": ["solwininfotech", "solwininfotech$PRODUCT$user_activity_log", "wordpress", "wordpress$PRODUCT$wordpress"]}