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CVE-2017-0911

17
FAUCET Score

CVE-2017-0911 affects Twitter Kit for iOS versions 3.0 to 3.2.1, specifically its "Login with Twitter" component. The vulnerability stems from a callback verification flaw where the application fails to authenticate the response received via its custom URL scheme, allowing an attacker to inject alternate credentials. Rated Medium (CVSS 5.4), this flaw could lead to unauthorized association of a Twitter account with a third-party service, with low attack complexity and no user interaction required. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.0, <= 3.2.1CPE matchmatch criteria
cpe:2.3:a:twitter:twitter_kit:*:*:*:*:*:iphone_os:*:*

CVSS Data

CVSS version used by this source: 3.0

5.4MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.50%
Probability of exploitation in next 30 days
EPSS Percentile
39.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0050 is in the 50th percentile among its peer group of 21,939 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

blog.twitter.com / developer/en_us/topics/tips/2018/vulnerability-in-twitter-kit-for-ios.html
Third Party Advisory
github.com / twitter/twitter-kit-ios/blob/b6eb49d149b056d826cbc4b53eaeb39a3ebd591e/TwitterKit/TwitterKit/Social/Identity/TWTRMobileSSO.m
PatchThird Party Advisory
github.com / twitter/twitter-kit-ios/blob/b6eb49d149b056d826cbc4b53eaeb39a3ebd591e/TwitterKit/TwitterKit/TWTRTwitter.m
PatchThird Party Advisory
github.com / twitter/twitter-kit-ios/wiki/Changelog
Release NotesThird Party Advisory
hackerone.com / reports/290229
Permissions RequiredThird Party Advisory