{"containers": {"cna": {"affected": [{"product": "BookStack", "vendor": "BookStackApp", "versions": [{"status": "affected", "version": ">= 0.18.0, < 0.29.2"}]}], "descriptions": [{"lang": "en", "value": "In BookStack greater than or equal to 0.18.0 and less than 0.29.2, there is an XSS vulnerability in comment creation. A user with permission to create comments could POST HTML directly to the system to be saved in a comment, which would then be executed/displayed to others users viewing the comment. Through this vulnerability custom JavaScript code could be injected and therefore ran on other user machines. This most impacts scenarios where not-trusted users are given permission to create comments. This has been fixed in 0.29.2."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2020-05-13T06:06:14", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/BookStackApp/BookStack/security/advisories/GHSA-5vf7-q87h-pg6w"}, {"tags": ["x_refsource_MISC"], "url": "https://bookstackapp.com/blog/beta-release-v0-29-2/"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/BookStackApp/BookStack/releases/tag/v0.29.2"}, {"name": "JVN#41035278", "tags": ["third-party-advisory", "x_refsource_JVN"], "url": "http://jvn.jp/en/jp/JVN41035278/index.html"}], "source": {"advisory": "GHSA-5vf7-q87h-pg6w", "discovery": "UNKNOWN"}, "title": "Cross-site Scripting in BookStack", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2020-11055", "STATE": "PUBLIC", "TITLE": "Cross-site Scripting in BookStack"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "BookStack", "version": {"version_data": [{"version_value": ">= 0.18.0, < 0.29.2"}]}}]}, "vendor_name": "BookStackApp"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In BookStack greater than or equal to 0.18.0 and less than 0.29.2, there is an XSS vulnerability in comment creation. A user with permission to create comments could POST HTML directly to the system to be saved in a comment, which would then be executed/displayed to others users viewing the comment. Through this vulnerability custom JavaScript code could be injected and therefore ran on other user machines. This most impacts scenarios where not-trusted users are given permission to create comments. This has been fixed in 0.29.2."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}]}, "references": {"reference_data": [{"name": "https://github.com/BookStackApp/BookStack/security/advisories/GHSA-5vf7-q87h-pg6w", "refsource": "CONFIRM", "url": "https://github.com/BookStackApp/BookStack/security/advisories/GHSA-5vf7-q87h-pg6w"}, {"name": "https://bookstackapp.com/blog/beta-release-v0-29-2/", "refsource": "MISC", "url": "https://bookstackapp.com/blog/beta-release-v0-29-2/"}, {"name": "https://github.com/BookStackApp/BookStack/releases/tag/v0.29.2", "refsource": "MISC", "url": "https://github.com/BookStackApp/BookStack/releases/tag/v0.29.2"}, {"name": "JVN#41035278", "refsource": "JVN", "url": "http://jvn.jp/en/jp/JVN41035278/index.html"}]}, "source": {"advisory": "GHSA-5vf7-q87h-pg6w", "discovery": "UNKNOWN"}}}}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2020-11055", "datePublished": "2020-05-07T20:40:14", "dateReserved": "2020-03-30T00:00:00", "dateUpdated": "2020-05-13T06:06:14", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.0"}

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