{ "containers": { "cna": { "affected": [ { "product": "WordPress Popular Posts", "vendor": "Hector Cabrera", "versions": [ { "lessThanOrEqual": "5.3.3", "status": "affected", "version": "5.3.3", "versionType": "custom" } ] } ], "credits": [ { "lang": "en", "value": "Original researcher - Vlad Visse (Patchstack Red Team)" } ], "datePublic": "2021-07-04T00:00:00.000Z", "descriptions": [ { "lang": "en", "value": "Authenticated Persistent Cross-Site Scripting (XSS) vulnerability in WordPress Popular Posts plugin (versions <= 5.3.3). Vulnerable at &widget-wpp[2][post_type]." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/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": "2026-04-28T16:07:35.841Z" }, "references": [ { "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/cabrerahector/wordpress-popular-posts/blob/master/changelog.md" }, { "tags": [ "x_refsource_MISC" ], "url": "https://patchstack.com/database/vulnerability/wordpress-popular-posts/wordpress-popular-posts-plugin-5-3-3-authenticated-persistent-cross-site-scripting-xss-vulnerability" } ], "solutions": [ { "lang": "en", "value": "Update to version 5.3.4 or higher." } ], "source": { "discovery": "EXTERNAL" }, "title": "WordPress Popular Posts plugin <= 5.3.3 - Authenticated Persistent Cross-Site Scripting (XSS) vulnerability", "x_generator": { "engine": "Vulnogram 0.0.9" }, "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "audit@patchstack.com", "DATE_PUBLIC": "2021-07-04T20:59:00.000Z", "ID": "CVE-2021-36872", "STATE": "PUBLIC", "TITLE": "WordPress Popular Posts plugin <= 5.3.3 - Authenticated Persistent Cross-Site Scripting (XSS) vulnerability" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "WordPress Popular Posts", "version": { "version_data": [ { "version_affected": "<=", "version_name": "5.3.3", "version_value": "5.3.3" } ] } } ] }, "vendor_name": "Hector Cabrera" } ] } }, "credit": [ { "lang": "eng", "value": "Original researcher - Vlad Visse (Patchstack Red Team)" } ], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "Authenticated Persistent Cross-Site Scripting (XSS) vulnerability in WordPress Popular Posts plugin (versions <= 5.3.3). Vulnerable at &widget-wpp[2][post_type]." } ] }, "generator": { "engine": "Vulnogram 0.0.9" }, "impact": { "cvss": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/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://github.com/cabrerahector/wordpress-popular-posts/blob/master/changelog.md", "refsource": "CONFIRM", "url": "https://github.com/cabrerahector/wordpress-popular-posts/blob/master/changelog.md" }, { "name": "https://patchstack.com/database/vulnerability/wordpress-popular-posts/wordpress-popular-posts-plugin-5-3-3-authenticated-persistent-cross-site-scripting-xss-vulnerability", "refsource": "MISC", "url": "https://patchstack.com/database/vulnerability/wordpress-popular-posts/wordpress-popular-posts-plugin-5-3-3-authenticated-persistent-cross-site-scripting-xss-vulnerability" } ] }, "solution": [ { "lang": "en", "value": "Update to version 5.3.4 or higher." } ], "source": { "discovery": "EXTERNAL" } } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T01:01:59.774Z" }, "title": "CVE Program Container", "references": [ { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://github.com/cabrerahector/wordpress-popular-posts/blob/master/changelog.md" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://patchstack.com/database/vulnerability/wordpress-popular-posts/wordpress-popular-posts-plugin-5-3-3-authenticated-persistent-cross-site-scripting-xss-vulnerability" } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2025-03-28T16:54:33.992986Z", "id": "CVE-2021-36872", "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": "2025-03-28T16:55:01.742Z" } } ] }, "cveMetadata": { "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3", "assignerShortName": "Patchstack", "cveId": "CVE-2021-36872", "datePublished": "2021-09-23T15:00:55.804Z", "dateReserved": "2021-07-19T00:00:00.000Z", "dateUpdated": "2026-04-28T16:07:35.841Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.2" }