{"id":"CVE-2021-25964","aliases":["EUVD-2021-12803","GHSA-8gr4-jgmh-5g8w"],"status":"published","title":"Stored Cross-Site Scripting (XSS) in Calibre-web via Description Field 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.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00549,"percentile":0.46225,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-10-04T14:55:10Z","modified":"2026-10-20T10:54:33Z","products":[{"vendor":"calibreweb","product":"calibreweb"},{"vendor":"janeczku","product":"calibre-web"},{"vendor":"ozzieisaacs","product":"calibreweb"}],"references":[{"url":"https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25964","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://github.com/janeczku/calibre-web/commit/32e27712f0f71fdec646add20cd78b4ce75acfce","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-25964"},{"url":"https://github.com/advisories/GHSA-8gr4-jgmh-5g8w"}],"sources":{"cve":[{"id":"CVE-2021-25964","title":"Stored Cross-Site Scripting (XSS) in Calibre-web via Description Field 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.","status":"published","published":"2021-10-04T14:55:10.213Z","modified":"2025-04-30T16:24:59.772Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:59.802172Z"}],"euvd":[{"id":"EUVD-2021-12803","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.","status":"published","published":"2021-10-04T14:55:10Z","modified":"2025-04-30T16:24:59Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T20:51:58.556756Z"}],"ghsa":[{"id":"GHSA-8gr4-jgmh-5g8w","title":"In “Calibre-web” application, v0.6.0 to v0.6.12, are vulnerable to Stored XSS in “Metadata”. An...","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.","status":"published","published":"2022-05-24T22:28:27Z","modified":"2024-11-19T15:31:51Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:58:53.124405Z"}],"nvd":[{"id":"CVE-2021-25964","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.","status":"published","published":"2021-10-04T15:15:07.31Z","modified":"2026-06-17T03:42:41.313Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:59.314106Z"}],"osv":[{"id":"CVE-2021-25964","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.","status":"published","published":"2021-10-04T15:15:07.31Z","modified":"2026-10-20T10:54:33.797154816Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:18.778776Z"}]}}