{"id":"CVE-2026-55230","state":"PUBLISHED","title":"Vvveb: Stored XSS in Vvveb via sanitizeHTML() filter bypass using a quoted greater-than character","description":"Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to version 1.0.8.6, Vvveb's HTML sanitizer fails to strip event-handler attributes when a tag carries a greater-than character inside a quoted attribute value. A low-privilege content author (default role author or contributor) can store a payload in post or product content that runs JavaScript in a browser of every visitor and of any administrator who views or previews that content, which opens a path to admin account takeover. This issue has been patched in version 1.0.8.6.","publishedAt":"2026-10-01T18:42:50.082Z","updatedAt":"2026-10-01T19:23:19.200Z","severity":{"score":8.7,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["givanz Vvveb"],"affected":[{"vendor":"givanz","product":"Vvveb","versions":[{"version":"< 1.0.8.6","status":"affected"}]}],"references":["https://github.com/givanz/Vvveb/security/advisories/GHSA-97xr-82vc-wj2v","https://github.com/givanz/Vvveb/releases/tag/1.0.8.6"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/55xxx/CVE-2026-55230.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-55230","state":"PUBLISHED","datePublished":"2026-10-01T18:42:50.082Z","dateUpdated":"2026-10-01T19:23:19.200Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-16T16:16:32.628Z"},"containers":{"cna":{"title":"Vvveb: Stored XSS in Vvveb via sanitizeHTML() filter bypass using a quoted greater-than character","descriptions":[{"lang":"en","value":"Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to version 1.0.8.6, Vvveb's HTML sanitizer fails to strip event-handler attributes when a tag carries a greater-than character inside a quoted attribute value. A low-privilege content author (default role author or contributor) can store a payload in post or product content that runs JavaScript in a browser of every visitor and of any administrator who views or previews that content, which opens a path to admin account takeover. This issue has been patched in version 1.0.8.6."}],"affected":[{"vendor":"givanz","product":"Vvveb","versions":[{"version":"< 1.0.8.6","status":"affected"}]}],"references":[{"url":"https://github.com/givanz/Vvveb/security/advisories/GHSA-97xr-82vc-wj2v","name":"https://github.com/givanz/Vvveb/security/advisories/GHSA-97xr-82vc-wj2v","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/givanz/Vvveb/releases/tag/1.0.8.6","name":"https://github.com/givanz/Vvveb/releases/tag/1.0.8.6","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-01T18:42:50.082Z"},"source":{"advisory":"GHSA-97xr-82vc-wj2v","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/givanz/Vvveb/security/advisories/GHSA-97xr-82vc-wj2v","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-01T19:22:58.340870Z","id":"CVE-2026-55230","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-01T19:23:19.200Z"}}]}}}