{"id":"CVE-2021-25964","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-25964","generatedAt":"2026-10-28T04:17:01.093Z","title":"In “Calibre-web” application, v0.6.0 to v0.6.12, are vulnerable to Stored XSS in “Metadata”.","description":"In “Calibre-web” application, v0.6.0 to v0.6.12, are vulnerable to Stored XSS in “Metadata”. An attacker that has access to edit the metadata information, can inject JavaScript payload in the description field. When a victim tries to open the file, XSS will be triggered.","published":"2021-10-04T15:15:07.000Z","lastModified":"2026-06-17T03:42:41.000Z","status":"Modified","sourceIdentifier":"vulnerabilitylab@mend.io","cvss":{"version":"3.1","score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["janeczku/calibre-web"],"epss":{"score":0.00549,"percentile":0.45753,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.55%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/janeczku/calibre-web/commit/32e27712f0f71fdec646add20cd78b4ce75acfce","tags":["Patch","Third Party Advisory"],"source":"vulnerabilitylab@mend.io"},{"url":"https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25964","tags":["Third Party Advisory"],"source":"vulnerabilitylab@mend.io"},{"url":"https://github.com/janeczku/calibre-web/commit/32e27712f0f71fdec646add20cd78b4ce75acfce","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25964","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-25964","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}