Improper authentication in Twitter Kit for iOS
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
Twitter Kit for iOS versions 3.0 to 3.2.1 is vulnerable to a callback verification flaw in the "Login with Twitter" component allowing an attacker to provide alternate credentials. In the final step of "Login with Twitter" authentication information is passed back to the application using the registered custom URL scheme (typically twitterkit-<consumer-key>) on iOS. Because the callback handler did not verify the authenticity of the response, this step is vulnerable to forgery, potentially allowing attacker to associate a Twitter account with a third-party service.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-0911
- 2026-10-03 Alias added: GHSA-rcwq-7c2v-mc74
References
Patch 2
More Twitter Kit vulnerabilities
- TI-2019-12242 The Twitter Kit framework through 3.4.2 for iOS does not properly validate the… CVSS 3.1HIGH 7.4
- TI-2019-03840 Cross-site request forgery in Twitter Kit for iOS CVSS 3.1MEDIUM 5.4
Sources
- CVE-2017-0911 · CVE Program
- CVE-2017-0911 · NVD
- FIRST EPSS
- GHSA-rcwq-7c2v-mc74 · GitHub Advisory Database · CC BY 4.0
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