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Bug bounty program

Platform
HackerOne
Bounties
Pays
Assets in scope
23
Disclosed reports
248
Subdomains
10,596

Most upvoted reports248

All reports
Most upvoted reports of X / xAI
ReportWeaknessDisclosedBountyVotes
Potential pre-auth RCE on Twitter VPNAnalysed#591295Command and Code Injection2019-08-10$20,1601,246
Bypassing Digits origin validation which leads to account takeoverAnalysed#129873Authentication2020-06-24–619
CRLF injectionAnalysed#446271No weakness recorded2019-12-25–439
Read-only application can publish/delete fleetsAnalysed#1032468Access Control2021-01-04–398
Blind XSS on Twitter's internal Big Data panel at █████████████Analysed#1207040Cross-site Scripting2021-07-09–357
Private list members disclosure via GraphQLAnalysed#885539Access Control2020-08-04–346
[Urgent] Invalidating OAuth2 Bearer token makes TweetDeck unavailableAnalysed#210779Denial of Service2019-04-25–323
Bypass Password Authentication for updating email and phone number - Security VulnerabilityAnalysed#770504Authentication2020-02-08–288
Insufficient OAuth callback validation which leads to Periscope account takeoverAnalysed#110293Authentication2019-04-10–277
Insufficient validation on Digits bridgeAnalysed#168116Authentication2020-08-20–263

Subdomains10,596

Subdomains of X / xAI
NameScopeFirst seen
cdn.api.twimg.comapiIn scope2026-11-14
media-api.m.lv.twimg.comapiIn scope2026-11-14
22api.twitter.comapiIn scope2026-11-14
ads-api.twitter.comapiIn scope2026-11-14
ads-api-sandbox.twitter.comapi, testIn scope2026-11-14
ads-bidder-api.twitter.comapiIn scope2026-11-14
ads-bidder-api-sandbox.twitter.comapi, testIn scope2026-11-14
api.twitter.comapiIn scope2026-11-14
api-0-4-0.twitter.comapiIn scope2026-11-14
api-0-4-07.twitter.comapiIn scope2026-11-14
api-0-4-1.twitter.comapiIn scope2026-11-14
api-0-4-2.twitter.comapiIn scope2026-11-14
api-0-4-3.twitter.comapiIn scope2026-11-14
api-0-4-4.twitter.comapiIn scope2026-11-14
api-0-4-5.twitter.comapiIn scope2026-11-14
api-0-4-6.twitter.comapiIn scope2026-11-14
api-0-4-7.twitter.comapiIn scope2026-11-14
api-0-4-8.twitter.comapiIn scope2026-11-14
api-0-5-0.twitter.comapiIn scope2026-11-14
api-1-0-0.twitter.comapiIn scope2026-11-14
api-2-0-0.twitter.comapiIn scope2026-11-14
api-20-0-0.twitter.comapiIn scope2026-11-14
api-21-0-0.twitter.comapiIn scope2026-11-14
api-22-0-0.twitter.comapiIn scope2026-11-14
api-23-0-0.twitter.comapiIn scope2026-11-14
api-24-0-0.twitter.comapiIn scope2026-11-14
api-25-0-0.twitter.comapiIn scope2026-11-14
api-26-0-0.twitter.comapiIn scope2026-11-14
api-26-0-0-26-0-1.twitter.comapiIn scope2026-11-14
api-26-0-0-26-4-1.twitter.comapiIn scope2026-11-14
api-26-0-0-26-4-2.twitter.comapiIn scope2026-11-14
api-26-0-0-26-4-3.twitter.comapiIn scope2026-11-14
api-26-0-0-26-5-1.twitter.comapiIn scope2026-11-14
api-26-0-0-26-5-2.twitter.comapiIn scope2026-11-14
api-26-0-0-26-6-1.twitter.comapiIn scope2026-11-14
api-26-0-0-26-6-2.twitter.comapiIn scope2026-11-14
api-26-0-0-26-6-3.twitter.comapiIn scope2026-11-14
api-26-0-0-26-6-4.twitter.comapiIn scope2026-11-14
api-26-0-0-c.twitter.comapiIn scope2026-11-14
api-27-0-0.twitter.comapiIn scope2026-11-14
api-28-0-0.twitter.comapiIn scope2026-11-14
api-29-0-0.twitter.comapiIn scope2026-11-14
api-3-0-0.twitter.comapiIn scope2026-11-14
api-30-0-0.twitter.comapiIn scope2026-11-14
api-31-0-0.twitter.comapiIn scope2026-11-14
api-32-0-0.twitter.comapiIn scope2026-11-14
api-32-0-0-32-0-1.twitter.comapiIn scope2026-11-14
api-32-0-0-32-4-1.twitter.comapiIn scope2026-11-14
api-32-0-0-32-4-2.twitter.comapiIn scope2026-11-14
api-32-0-0-32-4-3.twitter.comapiIn scope2026-11-14
api-32-0-0-32-5-1.twitter.comapiIn scope2026-11-14
api-32-0-0-32-5-2.twitter.comapiIn scope2026-11-14
api-32-0-0-32-5-3.twitter.comapiIn scope2026-11-14
api-32-0-0-32-6-1.twitter.comapiIn scope2026-11-14
api-32-0-0-32-6-2.twitter.comapiIn scope2026-11-14
api-32-0-0-32-6-3.twitter.comapiIn scope2026-11-14
api-32-0-0-32-6-4.twitter.comapiIn scope2026-11-14
api-32-0-0-c.twitter.comapiIn scope2026-11-14
api-33-0-0.twitter.comapiIn scope2026-11-14
api-34-0-0.twitter.comapiIn scope2026-11-14
api-35-0-0.twitter.comapiIn scope2026-11-14
api-36-0-0.twitter.comapiIn scope2026-11-14
api-37-0-0.twitter.comapiIn scope2026-11-14
api-38-0-0.twitter.comapiIn scope2026-11-14
api-39-0-0.twitter.comapiIn scope2026-11-14
api-39-0-0-39-0-0.twitter.comapiIn scope2026-11-14
api-39-0-0-39-4-10.twitter.comapiIn scope2026-11-14
api-39-0-0-39-4-2.twitter.comapiIn scope2026-11-14
api-39-0-0-39-4-3.twitter.comapiIn scope2026-11-14
api-39-0-0-39-4-8.twitter.comapiIn scope2026-11-14
api-39-0-0-39-4-9.twitter.comapiIn scope2026-11-14
api-39-4-0-39-4-10.twitter.comapiIn scope2026-11-14
api-39-4-0-39-4-2.twitter.comapiIn scope2026-11-14
api-39-4-0-39-4-3.twitter.comapiIn scope2026-11-14
api-39-4-0-39-4-5.twitter.comapiIn scope2026-11-14
api-39-4-0-39-4-8.twitter.comapiIn scope2026-11-14
api-39-4-0-39-4-9.twitter.comapiIn scope2026-11-14
api-39-4-10.twitter.comapiIn scope2026-11-14
api-39-4-10-39-0-0.twitter.comapiIn scope2026-11-14
api-39-4-10-39-4-2.twitter.comapiIn scope2026-11-14
api-39-4-10-39-4-3.twitter.comapiIn scope2026-11-14
api-39-4-10-39-4-5.twitter.comapiIn scope2026-11-14
api-39-4-10-39-4-8.twitter.comapiIn scope2026-11-14
api-39-4-2.twitter.comapiIn scope2026-11-14
api-39-4-2-39-0-0.twitter.comapiIn scope2026-11-14
api-39-4-2-39-4-10.twitter.comapiIn scope2026-11-14
api-39-4-2-39-4-2.twitter.comapiIn scope2026-11-14
api-39-4-2-39-4-3.twitter.comapiIn scope2026-11-14
api-39-4-2-39-4-9.twitter.comapiIn scope2026-11-14
api-39-4-3.twitter.comapiIn scope2026-11-14
api-39-4-3-39-4-10.twitter.comapiIn scope2026-11-14
api-39-4-3-39-4-2.twitter.comapiIn scope2026-11-14
api-39-4-3-39-4-3.twitter.comapiIn scope2026-11-14
api-39-4-3-39-4-8.twitter.comapiIn scope2026-11-14
api-39-4-3-39-4-9.twitter.comapiIn scope2026-11-14
api-39-4-5.twitter.comapiIn scope2026-11-14
api-39-4-5-39-0-0.twitter.comapiIn scope2026-11-14
api-39-4-5-39-4-10.twitter.comapiIn scope2026-11-14
api-39-4-5-39-4-2.twitter.comapiIn scope2026-11-14
api-39-4-5-39-4-3.twitter.comapiIn scope2026-11-14

10,296 names are covered by the program's own scope; 0 were first seen this week. Names come from ProjectDiscovery's public Chaos dataset (passive sources: certificate logs, DNS and other public data), matched to the program by its listing and its own domain scope. A name being in a dataset is not permission to test it: only what the program's own scope says is in scope, and its policy decides. CyberSIXT does not resolve, probe or scan these names. Tags come from the name alone. Source: ProjectDiscovery Chaos. Subdomains on the Atlas, or search the subdomains of every program.

A name in a dataset is not permission to test it: the program's own scope and rules decide. Data as of 2026-11-15.