cve-2021-39201
Vulnerability from cvelistv5
Published
2021-09-09 21:35
Modified
2024-08-04 01:58
Severity ?
EPSS score ?
Summary
Authenticated cross-site scripting (XSS) in WordPress editor
References
▼ | URL | Tags | |
---|---|---|---|
security-advisories@github.com | https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-wh69-25hr-h94v | Third Party Advisory | |
security-advisories@github.com | https://hackerone.com/reports/1142140 | Permissions Required | |
security-advisories@github.com | https://www.debian.org/security/2021/dsa-4985 | Third Party Advisory |
Impacted products
▼ | Vendor | Product |
---|---|---|
WordPress | wordpress-develop |
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-04T01:58:18.168Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://hackerone.com/reports/1142140" }, { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-wh69-25hr-h94v" }, { "name": "DSA-4985", "tags": [ "vendor-advisory", "x_refsource_DEBIAN", "x_transferred" ], "url": "https://www.debian.org/security/2021/dsa-4985" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "product": "wordpress-develop", "vendor": "WordPress", "versions": [ { "status": "affected", "version": "\u003e= 5.0, \u003c 5.8.0" } ] } ], "descriptions": [ { "lang": "en", "value": "WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. ### Impact The issue allows an authenticated but low-privileged user (like contributor/author) to execute XSS in the editor. This bypasses the restrictions imposed on users who do not have the permission to post `unfiltered_html`. ### Patches This has been patched in WordPress 5.8, and will be pushed to older versions via minor releases (automatic updates). It\u0027s strongly recommended that you keep auto-updates enabled to receive the fix. ### References https://wordpress.org/news/category/releases/ https://hackerone.com/reports/1142140 ### For more information If you have any questions or comments about this advisory: * Open an issue in [HackerOne](https://hackerone.com/wordpress)" } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.6, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-79", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2021-10-14T22:06:07", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M" }, "references": [ { "tags": [ "x_refsource_MISC" ], "url": "https://hackerone.com/reports/1142140" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-wh69-25hr-h94v" }, { "name": "DSA-4985", "tags": [ "vendor-advisory", "x_refsource_DEBIAN" ], "url": "https://www.debian.org/security/2021/dsa-4985" } ], "source": { "advisory": "GHSA-wh69-25hr-h94v", "discovery": "UNKNOWN" }, "title": "Authenticated cross-site scripting (XSS) in WordPress editor", "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-39201", "STATE": "PUBLIC", "TITLE": "Authenticated cross-site scripting (XSS) in WordPress editor" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "wordpress-develop", "version": { "version_data": [ { "version_value": "\u003e= 5.0, \u003c 5.8.0" } ] } } ] }, "vendor_name": "WordPress" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. ### Impact The issue allows an authenticated but low-privileged user (like contributor/author) to execute XSS in the editor. This bypasses the restrictions imposed on users who do not have the permission to post `unfiltered_html`. ### Patches This has been patched in WordPress 5.8, and will be pushed to older versions via minor releases (automatic updates). It\u0027s strongly recommended that you keep auto-updates enabled to receive the fix. ### References https://wordpress.org/news/category/releases/ https://hackerone.com/reports/1142140 ### For more information If you have any questions or comments about this advisory: * Open an issue in [HackerOne](https://hackerone.com/wordpress)" } ] }, "impact": { "cvss": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.6, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N", "version": "3.1" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)" } ] } ] }, "references": { "reference_data": [ { "name": "https://hackerone.com/reports/1142140", "refsource": "MISC", "url": "https://hackerone.com/reports/1142140" }, { "name": "https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-wh69-25hr-h94v", "refsource": "CONFIRM", "url": "https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-wh69-25hr-h94v" }, { "name": "DSA-4985", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2021/dsa-4985" } ] }, "source": { "advisory": "GHSA-wh69-25hr-h94v", "discovery": "UNKNOWN" } } } }, "cveMetadata": { "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-39201", "datePublished": "2021-09-09T21:35:08", "dateReserved": "2021-08-16T00:00:00", "dateUpdated": "2024-08-04T01:58:18.168Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2021-39201\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2021-09-09T22:15:09.433\",\"lastModified\":\"2021-12-14T21:20:33.867\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. ### Impact The issue allows an authenticated but low-privileged user (like contributor/author) to execute XSS in the editor. This bypasses the restrictions imposed on users who do not have the permission to post `unfiltered_html`. ### Patches This has been patched in WordPress 5.8, and will be pushed to older versions via minor releases (automatic updates). It\u0027s strongly recommended that you keep auto-updates enabled to receive the fix. ### References https://wordpress.org/news/category/releases/ https://hackerone.com/reports/1142140 ### For more information If you have any questions or comments about this advisory: * Open an issue in [HackerOne](https://hackerone.com/wordpress)\"},{\"lang\":\"es\",\"value\":\"WordPress es un sistema de administraci\u00f3n de contenidos gratuito y de c\u00f3digo abierto escrito en PHP y emparejado con una base de datos MySQL o MariaDB. ### Impacto: El problema permite a un usuario autenticado pero pocos privilegiados (como un colaborador/autor) ejecutar un ataque de tipo XSS en el editor. Esto omite las restricciones impuestas a usuarios que no presentan permiso para publicar \\\"unfiltered_html\\\". ### Parche: Esto ha sido parcheado en WordPress versi\u00f3n 5.8, y ser\u00e1 empujado a versiones anteriores por medio de versiones menores (actualizaciones autom\u00e1ticas). Se recomienda encarecidamente que mantenga habilitadas las actualizaciones autom\u00e1ticas para recibir la correcci\u00f3n. ### Referencias: https://wordpress.org/news/category/releases/ https://hackerone.com/reports/1142140 ### Para m\u00e1s informaci\u00f3n. Si presenta alguna pregunta o comentario sobre este aviso: * Abra una incidencia en [HackerOne](https://hackerone.com/wordpress\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\",\"baseScore\":5.4,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":2.3,\"impactScore\":2.7},{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\",\"baseScore\":7.6,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":2.3,\"impactScore\":4.7}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:S/C:N/I:P/A:N\",\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\",\"baseScore\":3.5},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":6.8,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":true}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.0\",\"versionEndExcluding\":\"5.8\",\"matchCriteriaId\":\"A521A8CA-4D85-4C11-9B58-C93025CD2B20\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FA6FEEC2-9F11-4643-8827-749718254FED\"}]}]}],\"references\":[{\"url\":\"https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-wh69-25hr-h94v\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://hackerone.com/reports/1142140\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Permissions Required\"]},{\"url\":\"https://www.debian.org/security/2021/dsa-4985\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]}]}}" } }
Loading...
Loading...
Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.