{"api_version":"1","generated_at":"2026-04-23T18:36:09+00:00","cve":"CVE-2023-6486","urls":{"html":"https://cve.report/CVE-2023-6486","api":"https://cve.report/api/cve/CVE-2023-6486.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-6486","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-6486"},"summary":{"title":"Spectra – WordPress Gutenberg Blocks <= 2.10.3 - Authenticated(Contributor+) Cross-Site Scripting via Custom CSS","description":"The Spectra – WordPress Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Custom CSS metabox in all versions up to and including 2.10.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.","state":"PUBLISHED","assigner":"Wordfence","published_at":"2024-04-09 19:15:12","updated_at":"2026-04-08 19:18:55"},"problem_types":["CWE-79","CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.4","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","baseScore":5.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"}},{"version":"3.1","source":"security@wordfence.com","type":"Secondary","score":"6.4","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","baseScore":6.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"6.4","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","data":{"baseScore":6.4,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","version":"3.1"}}],"references":[{"url":"https://advisory.abay.sh/cve-2023-6486","name":"https://advisory.abay.sh/cve-2023-6486","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3042670%40ultimate-addons-for-gutenberg%2Ftrunk&old=3037142%40ultimate-addons-for-gutenberg%2Ftrunk&sfp_email=&sfph_mail=","name":"https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3042670%40ultimate-addons-for-gutenberg%2Ftrunk&old=3037142%40ultimate-addons-for-gutenberg%2Ftrunk&sfp_email=&sfph_mail=","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/d4933a30-974f-487d-9444-b0ea1283a09c?source=cve","name":"https://www.wordfence.com/threat-intel/vulnerabilities/id/d4933a30-974f-487d-9444-b0ea1283a09c?source=cve","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://youtu.be/t5K745dBsT0","name":"https://youtu.be/t5K745dBsT0","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-6486","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-6486","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"brainstormforce","product":"Spectra Gutenberg Blocks – Website Builder for the Block Editor","version":"affected 2.10.3 semver","platforms":[]}],"timeline":[{"source":"CNA","time":"2024-04-03T00:00:00.000Z","lang":"en","value":"Disclosed"}],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Akbar Kustirama","lang":"en"}],"nvd_cpes":[{"cve_year":"2023","cve_id":"6486","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"brainstormforce","cpe5":"spectra","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"wordpress","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2023","cve_id":"6486","cve":"CVE-2023-6486","epss":"0.002430000","percentile":"0.476080000","score_date":"2026-04-22","updated_at":"2026-04-23 00:03:17"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2023-6486","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2024-06-04T15:31:23.304224Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2024-06-04T17:16:59.204Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"},{"providerMetadata":{"dateUpdated":"2024-08-02T08:28:21.812Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"tags":["x_transferred"],"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/d4933a30-974f-487d-9444-b0ea1283a09c?source=cve"},{"tags":["x_transferred"],"url":"https://youtu.be/t5K745dBsT0"},{"tags":["x_transferred"],"url":"https://advisory.abay.sh/cve-2023-6486"},{"tags":["x_transferred"],"url":"https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3042670%40ultimate-addons-for-gutenberg%2Ftrunk&old=3037142%40ultimate-addons-for-gutenberg%2Ftrunk&sfp_email=&sfph_mail="}],"title":"CVE Program Container"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Spectra Gutenberg Blocks – Website Builder for the Block Editor","vendor":"brainstormforce","versions":[{"lessThanOrEqual":"2.10.3","status":"affected","version":"0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"Akbar Kustirama"}],"descriptions":[{"lang":"en","value":"The Spectra – WordPress Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Custom CSS metabox in all versions up to and including 2.10.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."}],"metrics":[{"cvssV3_1":{"baseScore":6.4,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","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":"2026-04-08T17:25:50.417Z","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","shortName":"Wordfence"},"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/d4933a30-974f-487d-9444-b0ea1283a09c?source=cve"},{"url":"https://youtu.be/t5K745dBsT0"},{"url":"https://advisory.abay.sh/cve-2023-6486"},{"url":"https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3042670%40ultimate-addons-for-gutenberg%2Ftrunk&old=3037142%40ultimate-addons-for-gutenberg%2Ftrunk&sfp_email=&sfph_mail="}],"timeline":[{"lang":"en","time":"2024-04-03T00:00:00.000Z","value":"Disclosed"}],"title":"Spectra – WordPress Gutenberg Blocks <= 2.10.3 - Authenticated(Contributor+) Cross-Site Scripting via Custom CSS"}},"cveMetadata":{"assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","assignerShortName":"Wordfence","cveId":"CVE-2023-6486","datePublished":"2024-04-09T18:59:24.878Z","dateReserved":"2023-12-04T15:24:20.528Z","dateUpdated":"2026-04-08T17:25:50.417Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2024-04-09 19:15:12","lastModifiedDate":"2026-04-08 19:18:55","problem_types":["CWE-79","CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"],"metrics":{"cvssMetricV31":[{"source":"security@wordfence.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","baseScore":6.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":3.1,"impactScore":2.7},{"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","baseScore":5.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.3,"impactScore":2.7}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:brainstormforce:spectra:*:*:*:*:*:wordpress:*:*","versionEndExcluding":"2.10.4","matchCriteriaId":"A5712BB9-C969-4AAF-98E2-96A6267BAD9D"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2023","CveId":"6486","Ordinal":"1","Title":"Spectra – WordPress Gutenberg Blocks <= 2.10.3 - Authenticated(C","CVE":"CVE-2023-6486","Year":"2023"},"notes":[{"CveYear":"2023","CveId":"6486","Ordinal":"1","NoteData":"The Spectra – WordPress Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Custom CSS metabox in all versions up to and including 2.10.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.","Type":"Description","Title":"Spectra – WordPress Gutenberg Blocks <= 2.10.3 - Authenticated(C"}]}}}