{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-6998","assignerOrgId":"84fe0718-d6bb-4716-a7e8-81a6d1daa869","state":"PUBLISHED","assignerShortName":"Fluid Attacks","dateReserved":"2025-07-01T23:26:57.856Z","datePublished":"2025-07-24T19:39:17.709Z","dateUpdated":"2025-07-25T13:17:33.295Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","platforms":["Linux"],"product":"Calibre Web","vendor":"Calibre Web","versions":[{"status":"affected","version":"0.6.24","versionType":"custom"}]},{"defaultStatus":"unaffected","platforms":["Linux"],"product":"Autocaliweb","vendor":"Autocaliweb","versions":[{"lessThan":"0.7.1","status":"affected","version":"0.7.0","versionType":"custom"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:calibre_web:calibre_web:0.6.24:*:linux:*:*:*:*:*","vulnerable":true}],"negate":false,"operator":"OR"},{"cpeMatch":[{"criteria":"cpe:2.3:a:autocaliweb:autocaliweb:*:*:linux:*:*:*:*:*","versionEndExcluding":"0.7.1","versionStartIncluding":"0.7.0","vulnerable":true}],"negate":false,"operator":"OR"}],"operator":"OR"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<span style=\"background-color: rgb(255, 255, 255);\">ReDoS in strip_whitespaces() function in cps/string_helper.py</span> in Calibre Web and Autocaliweb allows&nbsp;<span style=\"background-color: rgb(255, 255, 255);\">unauthenticated remote attackers to cause denial of service via specially crafted username parameter that triggers catastrophic backtracking during login.&nbsp;</span>This issue affects Calibre Web: 0.6.24 (Nicolette); Autocaliweb: from 0.7.0 before 0.7.1."}],"value":"ReDoS in strip_whitespaces() function in cps/string_helper.py in Calibre Web and Autocaliweb allows unauthenticated remote attackers to cause denial of service via specially crafted username parameter that triggers catastrophic backtracking during login. This issue affects Calibre Web: 0.6.24 (Nicolette); Autocaliweb: from 0.7.0 before 0.7.1."}],"impacts":[{"capecId":"CAPEC-492","descriptions":[{"lang":"en","value":"CAPEC-492 Regular Expression Exponential Blowup"}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1333","description":"CWE-1333 Inefficient Regular Expression Complexity","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"84fe0718-d6bb-4716-a7e8-81a6d1daa869","shortName":"Fluid Attacks","dateUpdated":"2025-07-25T13:17:33.295Z"},"references":[{"tags":["third-party-advisory"],"url":"https://fluidattacks.com/advisories/megadeth"},{"tags":["product"],"url":"https://github.com/janeczku/calibre-web"},{"tags":["product"],"url":"https://github.com/gelbphoenix/autocaliweb"}],"source":{"discovery":"UNKNOWN"},"title":"Calibre Web 0.6.24 & Autocaliweb 0.7.0 - ReDoS","x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-07-24T19:50:08.633333Z","id":"CVE-2025-6998","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":"2025-07-24T19:50:16.388Z"}}]}}