CVE-2019-16263

Published: Oct 7, 2019Modified: Jun 17, 2026

7.4

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitability: 2.2 / Impact: 5.2

Source: NVD

Description

The Twitter Kit framework through 3.4.2 for iOS does not properly validate the api.twitter.com SSL certificate. Although the certificate chain must contain one of a set of pinned certificates, there are certain implementation errors such as a lack of hostname verification. NOTE: this is an end-of-life product.

Affected (1)

Products: Twitter: Twitter Kit

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Twitter Twitter Kit	Up to 3.4.2

Related CWEs

Improper Certificate Validation

The product does not validate, or incorrectly validates, a certificate.

References (6)

https://blog.appicaptor.com/2019/10/04/vulnerable-library-warning-twitterkit-for-ios/

Source: cve@mitre.org

Third Party Advisory

https://github.com/twitter-archive/twitter-kit-ios/blob/ac42e1351a66afa5ff7718d04d64a905dafe1f41/TwitterCore/TwitterCore/Networking/Security/TWTRServerTrustEvaluator.m#L75-L81

Source: cve@mitre.org

Third Party Advisory

https://www.sit.fraunhofer.de/fileadmin/dokumente/CVE/Advisory_TwitterKit_for_iOS_CVE-2019-16263.pdf

Source: cve@mitre.org

ExploitThird Party Advisory

https://blog.appicaptor.com/2019/10/04/vulnerable-library-warning-twitterkit-for-ios/

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://github.com/twitter-archive/twitter-kit-ios/blob/ac42e1351a66afa5ff7718d04d64a905dafe1f41/TwitterCore/TwitterCore/Networking/Security/TWTRServerTrustEvaluator.m#L75-L81

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://www.sit.fraunhofer.de/fileadmin/dokumente/CVE/Advisory_TwitterKit_for_iOS_CVE-2019-16263.pdf

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitThird Party Advisory

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