{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-15T23:08:12.852","vulnerabilities":[{"cve":{"id":"CVE-2021-3987","sourceIdentifier":"security@huntr.dev","published":"2024-11-15T11:15:06.610","lastModified":"2024-11-19T15:44:38.113","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"An improper access control vulnerability exists in janeczku/calibre-web. The affected version allows users without public shelf permissions to create public shelves. The vulnerability is due to the `create_shelf` method in `shelf.py` not verifying if the user has the necessary permissions to create a public shelf. This issue can lead to unauthorized actions being performed by users."},{"lang":"es","value":"Existe una vulnerabilidad de control de acceso indebido en janeczku/calibre-web. La versión afectada permite a los usuarios sin permisos de estantería pública crear estanterías públicas. La vulnerabilidad se debe a que el método `create_shelf` en `shelf.py` no verifica si el usuario tiene los permisos necesarios para crear una estantería pública. Este problema puede provocar que los usuarios realicen acciones no autorizadas."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":1.4}],"cvssMetricV30":[{"source":"security@huntr.dev","type":"Secondary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","baseScore":5.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":2.5}]},"weaknesses":[{"source":"security@huntr.dev","type":"Secondary","description":[{"lang":"en","value":"CWE-284"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-862"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:janeczku:calibre-web:*:*:*:*:*:*:*:*","versionEndExcluding":"0.6.15","matchCriteriaId":"CB86DF8E-5F67-41CA-B657-D8E0A61CD22A"}]}]}],"references":[{"url":"https://github.com/janeczku/calibre-web/commit/bcdc97641447965af486964537f3821f47b28874","source":"security@huntr.dev","tags":["Patch"]},{"url":"https://huntr.com/bounties/29fcc091-87b6-43bc-ab4b-3c0bec3f71df","source":"security@huntr.dev","tags":["Exploit"]}]}}]}