{"id":"CVE-2026-54219","state":"PUBLISHED","title":"Stored XSS in UBB.threads","description":"UBB.threads is vulnerable to Stored XSS via user posts and user profile fields. The application fails to properly sanitize user input, allowing low privileged attackers to inject arbitrary JavaScript that executes in a victim's browser upon viewing.\n\nBecause vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 7.7.5 but may also affect other versions.","publishedAt":"2026-06-18T12:56:17.425Z","updatedAt":"2026-06-18T13:31:59.555Z","severity":{"score":5.1,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N","source":"CERT-PL"},"assigner":"CERT-PL","products":["UBB Systems UBB.threads"],"affected":[{"vendor":"UBB Systems","product":"UBB.threads","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"7.7.5","versionType":"semver"}]}],"references":["https://www.ubbcentral.com/","https://cert.pl/en/posts/2026/06/CVE-2026-54219"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/54xxx/CVE-2026-54219.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54219","state":"PUBLISHED","datePublished":"2026-06-18T12:56:17.425Z","dateUpdated":"2026-06-18T13:31:59.555Z","assignerShortName":"CERT-PL","assignerOrgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","dateReserved":"2026-06-12T11:03:23.916Z"},"containers":{"cna":{"title":"Stored XSS in UBB.threads","descriptions":[{"lang":"en","value":"UBB.threads is vulnerable to Stored XSS via user posts and user profile fields. The application fails to properly sanitize user input, allowing low privileged attackers to inject arbitrary JavaScript that executes in a victim's browser upon viewing.\n\nBecause vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 7.7.5 but may also affect other versions."}],"affected":[{"vendor":"UBB Systems","product":"UBB.threads","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"7.7.5","versionType":"semver"}]}],"references":[{"url":"https://www.ubbcentral.com/","tags":["product"]},{"url":"https://cert.pl/en/posts/2026/06/CVE-2026-54219","tags":["third-party-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"CERT-PL","orgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","dateUpdated":"2026-06-18T12:56:17.425Z"},"credits":[{"lang":"en","type":"finder","value":"Kamil Szczurowski (Securitum)"},{"lang":"en","type":"finder","value":"Michał Wnękowicz (Securitum)"}],"datePublic":"2026-06-18T12:55:00.000Z","impacts":[{"capecId":"CAPEC-592","descriptions":[{"lang":"en","value":"CAPEC-592 Stored XSS"}]}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-18T13:31:38.865613Z","id":"CVE-2026-54219","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":"2026-06-18T13:31:59.555Z"}}]}}}