{"id":"CVE-2026-48761","state":"PUBLISHED","title":"Symfony: HtmlSanitizer UrlAttributeSanitizer Misses URL Attributes on <object>, <applet>, <iframe>, <img> and the URL Inside <meta http-equiv=\"refresh\"> content","description":"Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0 until 6.4.41, 7.4.13, and 8.0.13, UrlAttributeSanitizer::getSupportedAttributes() omitted URL-bearing attributes on <object>, <applet>, <iframe>, and <img>, and <meta http-equiv=\"refresh\"> URLs inside content bypassed URL sanitization, allowing explicitly enabled elements or attributes to pass javascript: and similar payloads into sanitized output. This issue is fixed in versions 6.4.41, 7.4.13, and 8.0.13.","publishedAt":"2026-07-14T19:21:26.582Z","updatedAt":"2026-07-21T18:02:30.352Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["symfony symfony","symfony html-sanitizer"],"affected":[{"vendor":"symfony","product":"symfony","versions":[{"version":">= 6.1.0, < 6.4.41","status":"affected"},{"version":">= 7.0.0-BETA1, < 7.4.13","status":"affected"},{"version":">= 8.0.0-BETA1, < 8.0.13","status":"affected"}]},{"vendor":"symfony","product":"html-sanitizer","versions":[{"version":">= 6.1.0, < 6.4.41","status":"affected"},{"version":">= 7.0.0-BETA1, < 7.4.13","status":"affected"},{"version":">= 8.0.0-BETA1, < 8.0.13","status":"affected"}]}],"references":["https://github.com/symfony/symfony/security/advisories/GHSA-x5qj-865h-mgvm","https://github.com/symfony/symfony/commit/069a70f9f26e61e9de3b7f9a864a86ed24b36bd0","https://github.com/symfony/symfony/releases/tag/v6.4.41","https://github.com/symfony/symfony/releases/tag/v7.4.13","https://github.com/symfony/symfony/releases/tag/v8.0.13"],"weaknesses":["CWE-79","CWE-1023"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/48xxx/CVE-2026-48761.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-48761","state":"PUBLISHED","datePublished":"2026-07-14T19:21:26.582Z","dateUpdated":"2026-07-21T18:02:30.352Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-22T19:39:05.356Z"},"containers":{"cna":{"title":"Symfony: HtmlSanitizer UrlAttributeSanitizer Misses URL Attributes on <object>, <applet>, <iframe>, <img> and the URL Inside <meta http-equiv=\"refresh\"> content","descriptions":[{"lang":"en","value":"Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0 until 6.4.41, 7.4.13, and 8.0.13, UrlAttributeSanitizer::getSupportedAttributes() omitted URL-bearing attributes on <object>, <applet>, <iframe>, and <img>, and <meta http-equiv=\"refresh\"> URLs inside content bypassed URL sanitization, allowing explicitly enabled elements or attributes to pass javascript: and similar payloads into sanitized output. This issue is fixed in versions 6.4.41, 7.4.13, and 8.0.13."}],"affected":[{"vendor":"symfony","product":"symfony","versions":[{"version":">= 6.1.0, < 6.4.41","status":"affected"},{"version":">= 7.0.0-BETA1, < 7.4.13","status":"affected"},{"version":">= 8.0.0-BETA1, < 8.0.13","status":"affected"}]},{"vendor":"symfony","product":"html-sanitizer","versions":[{"version":">= 6.1.0, < 6.4.41","status":"affected"},{"version":">= 7.0.0-BETA1, < 7.4.13","status":"affected"},{"version":">= 8.0.0-BETA1, < 8.0.13","status":"affected"}]}],"references":[{"url":"https://github.com/symfony/symfony/security/advisories/GHSA-x5qj-865h-mgvm","name":"https://github.com/symfony/symfony/security/advisories/GHSA-x5qj-865h-mgvm","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/symfony/symfony/commit/069a70f9f26e61e9de3b7f9a864a86ed24b36bd0","name":"https://github.com/symfony/symfony/commit/069a70f9f26e61e9de3b7f9a864a86ed24b36bd0","tags":["x_refsource_MISC"]},{"url":"https://github.com/symfony/symfony/releases/tag/v6.4.41","name":"https://github.com/symfony/symfony/releases/tag/v6.4.41","tags":["x_refsource_MISC"]},{"url":"https://github.com/symfony/symfony/releases/tag/v7.4.13","name":"https://github.com/symfony/symfony/releases/tag/v7.4.13","tags":["x_refsource_MISC"]},{"url":"https://github.com/symfony/symfony/releases/tag/v8.0.13","name":"https://github.com/symfony/symfony/releases/tag/v8.0.13","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-1023","lang":"en","description":"CWE-1023: Incomplete Comparison with Missing Factors","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-14T19:21:26.582Z"},"source":{"advisory":"GHSA-x5qj-865h-mgvm","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-21T18:02:08.885729Z","id":"CVE-2026-48761","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":"2026-07-21T18:02:30.352Z"}}]}}}