CVE-2021-36833

{"containers": {"cna": {"affected": [{"product": "MC4WP: Mailchimp for WordPress", "vendor": "ibericode", "versions": [{"lessThanOrEqual": "4.8.6", "status": "affected", "version": "<= 4.8.6", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Vulnerability discovered by Asif Nawaz Minhas (Patchstack Alliance)"}], "datePublic": "2022-03-02T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "Authenticated (admin or higher user role) Stored Cross-Site Scripting (XSS) vulnerability in ibericode's MC4WP plugin <= 4.8.6 at WordPress."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "description": "CWE-79 Cross-site Scripting (XSS)", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "21595511-bba5-4825-b968-b78d1f9984a3", "shortName": "Patchstack", "dateUpdated": "2026-04-28T16:07:30.992Z"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://wordpress.org/plugins/mailchimp-for-wp/#developers"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://patchstack.com/database/vulnerability/mailchimp-for-wp/wordpress-mc4wp-plugin-4-8-6-authenticated-stored-cross-site-scripting-xss-vulnerability"}], "solutions": [{"lang": "en", "value": "Update to 4.8.7 or higher version."}], "source": {"discovery": "EXTERNAL"}, "title": "WordPress MC4WP plugin <= 4.8.6 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability", "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "audit@patchstack.com", "DATE_PUBLIC": "2022-03-02T07:15:00.000Z", "ID": "CVE-2021-36833", "STATE": "PUBLIC", "TITLE": "WordPress MC4WP plugin <= 4.8.6 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "MC4WP: Mailchimp for WordPress", "version": {"version_data": [{"version_affected": "<=", "version_name": "<= 4.8.6", "version_value": "4.8.6"}]}}]}, "vendor_name": "ibericode"}]}}, "credit": [{"lang": "eng", "value": "Vulnerability discovered by Asif Nawaz Minhas (Patchstack Alliance)"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Authenticated (admin or higher user role) Stored Cross-Site Scripting (XSS) vulnerability in ibericode's MC4WP plugin <= 4.8.6 at WordPress."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-79 Cross-site Scripting (XSS)"}]}]}, "references": {"reference_data": [{"name": "https://wordpress.org/plugins/mailchimp-for-wp/#developers", "refsource": "CONFIRM", "url": "https://wordpress.org/plugins/mailchimp-for-wp/#developers"}, {"name": "https://patchstack.com/database/vulnerability/mailchimp-for-wp/wordpress-mc4wp-plugin-4-8-6-authenticated-stored-cross-site-scripting-xss-vulnerability", "refsource": "CONFIRM", "url": "https://patchstack.com/database/vulnerability/mailchimp-for-wp/wordpress-mc4wp-plugin-4-8-6-authenticated-stored-cross-site-scripting-xss-vulnerability"}]}, "solution": [{"lang": "en", "value": "Update to 4.8.7 or higher version."}], "source": {"discovery": "EXTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T01:01:59.724Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://wordpress.org/plugins/mailchimp-for-wp/#developers"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://patchstack.com/database/vulnerability/mailchimp-for-wp/wordpress-mc4wp-plugin-4-8-6-authenticated-stored-cross-site-scripting-xss-vulnerability"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-02-20T19:30:06.217187Z", "id": "CVE-2021-36833", "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": "2025-02-20T20:22:03.315Z"}}]}, "cveMetadata": {"assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3", "assignerShortName": "Patchstack", "cveId": "CVE-2021-36833", "datePublished": "2022-05-20T19:55:54.898Z", "dateReserved": "2021-07-19T00:00:00.000Z", "dateUpdated": "2026-04-28T16:07:30.992Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.2"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://wordpress.org/plugins/mailchimp-for-wp/#developers", "tags": ["x_refsource_CONFIRM", "x_transferred"]}, {"url": "https://patchstack.com/database/vulnerability/mailchimp-for-wp/wordpress-mc4wp-plugin-4-8-6-authenticated-stored-cross-site-scripting-xss-vulnerability", "tags": ["x_refsource_CONFIRM", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T01:01:59.724Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-36833", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-02-20T19:30:06.217187Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-20T19:30:07.596Z"}}], "cna": {"title": "WordPress MC4WP plugin <= 4.8.6 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "value": "Vulnerability discovered by Asif Nawaz Minhas (Patchstack Alliance)"}], "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}}], "affected": [{"vendor": "ibericode", "product": "MC4WP: Mailchimp for WordPress", "versions": [{"status": "affected", "version": "<= 4.8.6", "versionType": "custom", "lessThanOrEqual": "4.8.6"}]}], "solutions": [{"lang": "en", "value": "Update to 4.8.7 or higher version."}], "datePublic": "2022-03-02T00:00:00.000Z", "references": [{"url": "https://wordpress.org/plugins/mailchimp-for-wp/#developers", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://patchstack.com/database/vulnerability/mailchimp-for-wp/wordpress-mc4wp-plugin-4-8-6-authenticated-stored-cross-site-scripting-xss-vulnerability", "tags": ["x_refsource_CONFIRM"]}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "descriptions": [{"lang": "en", "value": "Authenticated (admin or higher user role) Stored Cross-Site Scripting (XSS) vulnerability in ibericode's MC4WP plugin <= 4.8.6 at WordPress."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-79", "description": "CWE-79 Cross-site Scripting (XSS)"}]}], "providerMetadata": {"orgId": "21595511-bba5-4825-b968-b78d1f9984a3", "shortName": "Patchstack", "dateUpdated": "2022-05-20T19:55:54.000Z"}, "x_legacyV4Record": {"credit": [{"lang": "eng", "value": "Vulnerability discovered by Asif Nawaz Minhas (Patchstack Alliance)"}], "impact": {"cvss": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}}, "source": {"discovery": "EXTERNAL"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"version": {"version_data": [{"version_name": "<= 4.8.6", "version_value": "4.8.6", "version_affected": "<="}]}, "product_name": "MC4WP: Mailchimp for WordPress"}]}, "vendor_name": "ibericode"}]}}, "solution": [{"lang": "en", "value": "Update to 4.8.7 or higher version."}], "data_type": "CVE", "generator": {"engine": "Vulnogram 0.0.9"}, "references": {"reference_data": [{"url": "https://wordpress.org/plugins/mailchimp-for-wp/#developers", "name": "https://wordpress.org/plugins/mailchimp-for-wp/#developers", "refsource": "CONFIRM"}, {"url": "https://patchstack.com/database/vulnerability/mailchimp-for-wp/wordpress-mc4wp-plugin-4-8-6-authenticated-stored-cross-site-scripting-xss-vulnerability", "name": "https://patchstack.com/database/vulnerability/mailchimp-for-wp/wordpress-mc4wp-plugin-4-8-6-authenticated-stored-cross-site-scripting-xss-vulnerability", "refsource": "CONFIRM"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "eng", "value": "Authenticated (admin or higher user role) Stored Cross-Site Scripting (XSS) vulnerability in ibericode's MC4WP plugin <= 4.8.6 at WordPress."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-79 Cross-site Scripting (XSS)"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-36833", "STATE": "PUBLIC", "TITLE": "WordPress MC4WP plugin <= 4.8.6 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability", "ASSIGNER": "audit@patchstack.com", "DATE_PUBLIC": "2022-03-02T07:15:00.000Z"}}}}, "cveMetadata": {"cveId": "CVE-2021-36833", "state": "PUBLISHED", "dateUpdated": "2025-02-20T20:22:03.315Z", "dateReserved": "2021-07-19T00:00:00.000Z", "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3", "datePublished": "2022-05-20T19:55:54.898Z", "assignerShortName": "Patchstack"}, "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "MC4WP: Mailchimp for WordPress", "vendor": "ibericode", "versions": [{"lessThanOrEqual": "4.8.6", "status": "affected", "version": "<= 4.8.6", "versionType": "custom"}]}], "source": "audit@patchstack.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:ibericode:mailchimp_for_wordpress:*:*:*:*:*:wordpress:*:*", "matchCriteriaId": "39D615A5-B92A-446C-97C6-05216A21C9B0", "versionEndIncluding": "4.8.6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Authenticated (admin or higher user role) Stored Cross-Site Scripting (XSS) vulnerability in ibericode's MC4WP plugin <= 4.8.6 at WordPress."}, {"lang": "es", "value": "Una vulnerabilidad de tipo Cross-Site Scripting (XSS) almacenado y autenticado (rol de administrador o usuario superior) en el plugin MC4WP de ibericode versiones anteriores a 4.8.6 incluy\u00e9ndola, en WordPress"}], "id": "CVE-2021-36833", "lastModified": "2026-06-17T03:59:29.797", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 3.5, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 6.8, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.7, "impactScore": 2.7, "source": "audit@patchstack.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.7, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-36833", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-02-20T19:30:06.217187Z", "version": "2.0.3"}}]}, "published": "2022-05-20T20:15:09.747", "references": [{"source": "audit@patchstack.com", "tags": ["Third Party Advisory"], "url": "https://patchstack.com/database/vulnerability/mailchimp-for-wp/wordpress-mc4wp-plugin-4-8-6-authenticated-stored-cross-site-scripting-xss-vulnerability"}, {"source": "audit@patchstack.com", "tags": ["Product"], "url": "https://wordpress.org/plugins/mailchimp-for-wp/#developers"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://patchstack.com/database/vulnerability/mailchimp-for-wp/wordpress-mc4wp-plugin-4-8-6-authenticated-stored-cross-site-scripting-xss-vulnerability"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Product"], "url": "https://wordpress.org/plugins/mailchimp-for-wp/#developers"}], "sourceIdentifier": "audit@patchstack.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "audit@patchstack.com", "type": "Secondary"}]}

{}

{}