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I. Basic Information for CVE-2025-6998
Vulnerability Information
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Vulnerability Title
Calibre Web 0.6.24 & Autocaliweb 0.7.0 - ReDoS
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1333
Source: NVD (National Vulnerability Database)
Vulnerability Title
Calibre-Web 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Calibre-Web是Jan B个人开发者的一款用于浏览、阅读和下载Calibre数据库中电子书的Web应用程序。 Calibre-Web 0.6.24版本 存在安全漏洞，该漏洞源于strip_whitespaces函数存在正则表达式拒绝服务漏洞，可能导致拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
Calibre WebCalibre Web 0.6.24 -
AutocaliwebAutocaliweb 0.7.0 ~ 0.7.1 -
II. Public POCs for CVE-2025-6998
#POC DescriptionSource LinkShenlong Link
1Exploit for the redos for CalibreWeb v0.6.24https://github.com/mind2hex/CVE-2025-6998-CalibreWeb-0.6.24-ReDoSPOC Details
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III. Intelligence Information for CVE-2025-6998
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IV. Related Vulnerabilities
Same product: Calibre Web
Same vendor: Calibre Web
Same weakness: CWE-1333
V. Comments for CVE-2025-6998

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