{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-6634","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-04-19T19:17:20.429Z","datePublished":"2026-04-20T11:30:13.847Z","dateUpdated":"2026-04-20T15:02:48.499Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-04-20T11:30:13.847Z"},"title":"usememos UpdateInstanceSetting App.tsx memos_access_token improper authorization","problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-285","lang":"en","description":"Improper Authorization"}]},{"descriptions":[{"type":"CWE","cweId":"CWE-266","lang":"en","description":"Incorrect Privilege Assignment"}]}],"affected":[{"vendor":"usememos","product":"memos","versions":[{"version":"0.22.0","status":"affected"},{"version":"0.22.1","status":"affected"}],"cpes":["cpe:2.3:a:usememos:memos:*:*:*:*:*:*:*:*"],"modules":["UpdateInstanceSetting"]}],"descriptions":[{"lang":"en","value":"A weakness has been identified in usememos memos up to 0.22.1. This affects the function memos_access_token of the file src/App.tsx of the component UpdateInstanceSetting. This manipulation of the argument additionalStyle/additionalScript causes improper authorization. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way."}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":5.3,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":6.3,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":6.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":6.5,"vectorString":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR"}}],"timeline":[{"time":"2026-04-19T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-04-19T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-04-19T21:22:25.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"davidgilmore (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB CNA Team","type":"coordinator"}],"references":[{"url":"https://vuldb.com/vuln/358268","name":"VDB-358268 | usememos UpdateInstanceSetting App.tsx memos_access_token improper authorization","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/358268/cti","name":"VDB-358268 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/submit/793432","name":"Submit #793432 | Usememos Memos 0.22.1 Cross Site Scripting","tags":["third-party-advisory"]},{"url":"https://github.com/Dave-gilmore-aus/security-advisories/blob/main/usememos-security-advisory","tags":["exploit"]}],"tags":["x_open-source"]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-20T15:02:22.354110Z","id":"CVE-2026-6634","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-04-20T15:02:48.499Z"}}]}}