CVE-2020-15099— Exposure of Sensitive Information to an Unauthorized Actor in TYPO3 CMS
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I. Basic Information for CVE-2020-15099
Vulnerability Information
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Vulnerability Title
Exposure of Sensitive Information to an Unauthorized Actor in TYPO3 CMS
Source: NVD (National Vulnerability Database)
Vulnerability Description
In TYPO3 CMS greater than or equal to 9.0.0 and less than 9.5.20, and greater than or equal to 10.0.0 and less than 10.4.6, in a case where an attacker manages to generate a valid cryptographic message authentication code (HMAC-SHA1) - either by using a different existing vulnerability or in case the internal encryptionKey was exposed - it is possible to retrieve arbitrary files of a TYPO3 installation. This includes the possibility to fetch typo3conf/LocalConfiguration.php, which again contains the encryptionKey as well as credentials of the database management system being used. In case a database server is directly accessible either via internet or in a shared hosting network, this allows the ability to completely retrieve, manipulate or delete database contents. This includes creating an administration user account - which can be used to trigger remote code execution by injecting custom extensions. This has been patched in versions 9.5.20 and 10.4.6.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
TYPO3 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TYPO3是瑞士TYPO3协会的一套免费开源的内容管理系统(框架)(CMS/CMF)。 TYPO3 9.0.0版本至9.5.19版本和10.0.0版本至10.4.5版本中存在安全漏洞。攻击者可利用该漏洞提升权限。
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
II. Public POCs for CVE-2020-15099
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- https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-3x94-fv5h-5q2cx_refsource_CONFIRM
- https://typo3.org/security/advisory/typo3-core-sa-2020-007x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2020-15099
IV. Related Vulnerabilities
Same product: TYPO3 CMS
- CVE-2026-6553
TYPO3 CMS Stores Cleartext Password in User Settings Module - CVE-2026-0859
TYPO3 CMS Allows Insecure Deserialization via Mailer File Sp - CVE-2025-59022
TYPO3 CMS Allows Broken Access Control in Recycler Module - CVE-2025-59021
TYPO3 CMS Allows Broken Access Control in Redirects Module - CVE-2025-59020
TYPO3 CMS Allows Broken Access Control in Edit Document Cont
Same vendor: TYPO3
- CVE-2026-6553
TYPO3 CMS Stores Cleartext Password in User Settings Module - CVE-2026-4208
Authentication Bypass in extension "E-Mail MFA Provider" (mf - CVE-2026-4202
Broken Access Control in extension "Redirect Tab" - CVE-2026-1323
Insecure Deserialization in extension "Mailqueue" (mailqueue - CVE-2026-0895
Insecure Deserialization in extension "Mailqueue" (mailqueue
Same weakness: CWE-200
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quarkus-openapi-generator has overly broad path-parameter ma - CVE-2026-8198
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