{"id":"CVE-2026-25529","state":"PUBLISHED","title":"Postal has HTML injection / XSS in message view","description":"Postal is an open source SMTP server. Postal versions less than 3.3.5 had a HTML injection vulnerability that allowed unescaped data to be included in the admin interface. The primary way for unescaped data to be added is via the API's \"send/raw\" method. This could allow arbitrary HTML to be injected in to the page which may modify the page in a misleading way or allow for unauthorised javascript to be executed. Fixed in 3.3.5 and higher.","publishedAt":"2026-03-12T16:35:33.384Z","updatedAt":"2026-03-12T17:57:37.553Z","severity":{"score":8.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["postalserver postal"],"affected":[{"vendor":"postalserver","product":"postal","versions":[{"version":"< 3.3.5","status":"affected"}]}],"references":["https://github.com/postalserver/postal/security/advisories/GHSA-5f4r-5jpr-rfhc"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/25xxx/CVE-2026-25529.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-25529","state":"PUBLISHED","datePublished":"2026-03-12T16:35:33.384Z","dateUpdated":"2026-03-12T17:57:37.553Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-02-02T19:59:47.373Z"},"containers":{"cna":{"title":"Postal has HTML injection / XSS in message view","descriptions":[{"lang":"en","value":"Postal is an open source SMTP server. Postal versions less than 3.3.5 had a HTML injection vulnerability that allowed unescaped data to be included in the admin interface. The primary way for unescaped data to be added is via the API's \"send/raw\" method. This could allow arbitrary HTML to be injected in to the page which may modify the page in a misleading way or allow for unauthorised javascript to be executed. Fixed in 3.3.5 and higher."}],"affected":[{"vendor":"postalserver","product":"postal","versions":[{"version":"< 3.3.5","status":"affected"}]}],"references":[{"url":"https://github.com/postalserver/postal/security/advisories/GHSA-5f4r-5jpr-rfhc","name":"https://github.com/postalserver/postal/security/advisories/GHSA-5f4r-5jpr-rfhc","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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":"2026-03-12T16:35:33.384Z"},"source":{"advisory":"GHSA-5f4r-5jpr-rfhc","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-12T17:57:23.299542Z","id":"CVE-2026-25529","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":"2026-03-12T17:57:37.553Z"}}]}}}