{"id":"CVE-2026-72574","state":"PUBLISHED","title":"picocms Pico - Host Header Injection Enables Script Source Hijacking","description":"A host header injection vulnerability in picocms/Pico through 2.1.4 allows an unauthenticated remote attacker to control the origin of JavaScript and CSS assets loaded by the default theme. When base_url is unset (the default), Pico::getBaseUrl in lib/Pico.php builds the base URL from unvalidated Host, X-Forwarded-Host, X-Forwarded-Proto, and X-Forwarded-Port request headers.","publishedAt":"2026-08-10T10:40:57.868Z","updatedAt":"2026-08-10T18:22:51.259Z","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":"TuranSec"},"assigner":"TuranSec","products":["picocms Pico"],"affected":[{"vendor":"picocms","product":"Pico","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.1.4","versionType":"semver"}]}],"references":["https://picocms.org","https://github.com/picocms/Pico","https://github.com/picocms/Pico/blob/master/lib/Pico.php"],"weaknesses":["CWE-644"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/72xxx/CVE-2026-72574.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72574","state":"PUBLISHED","datePublished":"2026-08-10T10:40:57.868Z","dateUpdated":"2026-08-10T18:22:51.259Z","assignerShortName":"TuranSec","assignerOrgId":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","dateReserved":"2026-08-10T10:32:53.854Z"},"containers":{"cna":{"title":"picocms Pico - Host Header Injection Enables Script Source Hijacking","descriptions":[{"lang":"en","value":"A host header injection vulnerability in picocms/Pico through 2.1.4 allows an unauthenticated remote attacker to control the origin of JavaScript and CSS assets loaded by the default theme. When base_url is unset (the default), Pico::getBaseUrl in lib/Pico.php builds the base URL from unvalidated Host, X-Forwarded-Host, X-Forwarded-Proto, and X-Forwarded-Port request headers."}],"affected":[{"vendor":"picocms","product":"Pico","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.1.4","versionType":"semver"}]}],"references":[{"url":"https://picocms.org","name":"Vendor","tags":["third-party-advisory"]},{"url":"https://github.com/picocms/Pico","name":"Product","tags":["third-party-advisory"]},{"url":"https://github.com/picocms/Pico/blob/master/lib/Pico.php","name":"Vulnerable File","tags":["technical-description"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","baseScore":6.1,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-644","lang":"en","type":"CWE","description":"CWE-644: Improper Neutralization of HTTP Headers for Scripting Syntax"}]}],"providerMetadata":{"shortName":"TuranSec","orgId":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","dateUpdated":"2026-08-10T11:47:48.941Z"},"credits":[{"lang":"en","value":"Nurmurodov Asadbek","type":"finder"}],"timeline":[{"time":"2026-08-10T10:32:53.000Z","lang":"en","value":"CVE Reserved"},{"time":"2026-08-10T10:32:53.000Z","lang":"en","value":"Public Disclosure"}],"source":{"discovery":"EXTERNAL"},"datePublic":"2026-08-10T10:32:53.000Z"},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-10T15:52:46.129439Z","id":"CVE-2026-72574","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":"2026-08-10T18:22:51.259Z"}}]}}}