{"id":"CVE-2026-66490","state":"PUBLISHED","title":"Joomla Extension - balbooa.com - Stored cross-site scripting via a comment avatar in Gridbox < 2.20.2","description":"Joomla Extension - balbooa.com - Stored cross-site scripting via a comment avatar in Gridbox < 2.20.2","publishedAt":"2026-07-29T13:54:24.941Z","updatedAt":"2026-08-12T13:52:50.243Z","severity":{"score":6.1,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","source":"CISA-ADP"},"assigner":"Joomla","products":["balbooa.com Gridbox extension for Joomla"],"affected":[{"vendor":"balbooa.com","product":"Gridbox extension for Joomla","packageName":"com_gridbox","defaultStatus":"unaffected","versions":[{"version":"1.0.0-2.20.1","status":"affected"}]}],"references":["https://www.balbooa.com/gridbox","https://mysites.guru/blog/gridbox-23-critical-vulnerabilities/"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/66xxx/CVE-2026-66490.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-66490","state":"PUBLISHED","datePublished":"2026-07-29T13:54:24.941Z","dateUpdated":"2026-08-12T13:52:50.243Z","assignerShortName":"Joomla","assignerOrgId":"6ff30186-7fb7-4ad9-be33-533e7b05e586","dateReserved":"2026-07-27T13:01:42.270Z"},"containers":{"cna":{"title":"Joomla Extension - balbooa.com - Stored cross-site scripting via a comment avatar in Gridbox < 2.20.2","descriptions":[{"lang":"en","value":"Joomla Extension - balbooa.com - Stored cross-site scripting via a comment avatar in Gridbox < 2.20.2"}],"affected":[{"vendor":"balbooa.com","product":"Gridbox extension for Joomla","packageName":"com_gridbox","defaultStatus":"unaffected","versions":[{"version":"1.0.0-2.20.1","status":"affected"}]}],"references":[{"url":"https://www.balbooa.com/gridbox","tags":["product"]},{"url":"https://mysites.guru/blog/gridbox-23-critical-vulnerabilities/","tags":["third-party-advisory"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Joomla","orgId":"6ff30186-7fb7-4ad9-be33-533e7b05e586","dateUpdated":"2026-08-12T13:52:50.243Z"},"credits":[{"lang":"en","type":"finder","value":"Phil Taylor, mysites.guru"}],"impacts":[{"capecId":"CAPEC-18","descriptions":[{"lang":"en","value":"CAPEC-18 XSS Targeting Non-Script Elements"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"CHANGED","version":"3.1","baseScore":6.1,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","integrityImpact":"LOW","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-07-29T14:42:53.533293Z","id":"CVE-2026-66490","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-29T14:42:57.022Z"}}]}}}