{"id":"CVE-2026-34212","summary":"Docmost page content has stored XSS via unsanitized attachment URLs","details":"Docmost is open-source collaborative wiki and documentation software. In versions prior to 0.71.0, improper neutralization of attachment URLs in Docmost allows a low-privileged authenticated user to store a malicious `javascript:` URL inside an attachment node in page content. When another user views the page and activates the attachment link/icon, attacker-controlled JavaScript executes in the context of the Docmost origin. Version 0.71.0 patches the issue.","aliases":["GHSA-cf68-cff9-hq4w"],"modified":"2026-07-15T01:48:50.171721563Z","published":"2026-04-14T21:42:44.202Z","database_specific":{"cwe_ids":["CWE-79"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34212.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34212.json"},{"type":"ADVISORY","url":"https://github.com/docmost/docmost/security/advisories/GHSA-cf68-cff9-hq4w"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34212"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/docmost/docmost","events":[{"introduced":"0"},{"fixed":"642024ba9d1afcc7c14ad3c34da8495037faeaf1"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"0.71.0"}],"source":["AFFECTED_FIELD","CPE_RANGE"],"cpe":"cpe:2.3:a:docmost:docmost:*:*:*:*:*:*:*:*"}}],"versions":["v0.70.2","v0.70.1","v0.70.3","v0.70.0","v0.25.3","v0.25.2","v0.25.1","v0.25.0","v0.25.0-beta.1","v0.24.1","v0.24.0","v0.23.2","v0.23.1","v0.23.0","v0.22.2","v0.22.1","v0.22.0","v0.21.0","v0.20.4","v0.20.3","v0.20.2","v0.20.1","v0.20.0","v0.10.2","v0.10.1","v0.10.0","v0.9.0","v0.8.4","v0.8.3","v0.8.2","v0.8.1","v0.8.0","v0.7.0","v0.6.2","v0.6.1","v0.6.0","v0.5.0","v0.4.1","v0.4.0","v0.3.1","v0.3.0","v0.2.10","v0.2.9","v0.2.8","v0.2.7","v0.2.5","v0.2.4","0.2.3","v0.2.2","v0.2.1","v0.2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34212.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}]}