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Bug bounty program

SL

Slack

Open on HackerOneAtlas
Platform
HackerOne
Bounties
Pays
Assets in scope
19
Disclosed reports
133
Subdomains
137,436
Vendor on CyberSIXT
Slack (3 CVEs, 0 exploited)

Most upvoted reports133

All reports
Most upvoted reports of Slack
ReportWeaknessDisclosedBountyVotes
Mass account takeovers using HTTP Request Smuggling on https://slackb.com/ to steal session cookiesAnalysed#737140Injection and Smuggling2020-03-12–870
Remote Code Execution in Slack desktop apps + bonusAnalysed#783877Command and Code Injection2020-08-28–509
XSS vulnerable parameter in a location hashAnalysed#146336Cross-site Scripting2019-10-16–455
URL link spoofingAnalysed#481472Input Validation and Logic2020-04-26$250362
TURN server allows TCP and UDP proxying to internal network, localhost and meta-data servicesAnalysed#333419Server-Side Request Forgery2020-03-12$3,500323
AWS bucket leading to iOS test build code and configuration exposureAnalysed#404822Information Disclosure2019-02-23$1,500321
Slack DTLS uses a private key that is in the public domain, which may lead to SRTP stream hijackAnalysed#531032Cryptography2020-03-12$2,000170
XSS in gist integrationAnalysed#11073Cross-site Scripting2019-04-28$500157
Unauthenticated LFI revealing log informationAnalysed#272578Information Disclosure2018-01-26–123
Stealing xoxs-tokens using weak postMessage / call-popup redirect to current team domainAnalysed#207170Misconfiguration and Insecure Design2017-02-28–120

Subdomains137,436

Root
Scope
Name suggests:Development
First seen
Text fileClear filters9,581 names
Subdomains of Slack
NameScopeFirst seen
wildcard.enterprise.dev1013.slack.comdevNot in the scope2026-11-14
wildcard.dev1013.slack.comdevNot in the scope2026-11-14
dev1014.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1014.slack.comdevNot in the scope2026-11-14
wildcard.dev1014.slack.comdevNot in the scope2026-11-14
dev1015.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1015.slack.comdevNot in the scope2026-11-14
wildcard.dev1015.slack.comdevNot in the scope2026-11-14
dev1016.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1016.slack.comdevNot in the scope2026-11-14
wildcard.dev1016.slack.comdevNot in the scope2026-11-14
dev1017.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1017.slack.comdevNot in the scope2026-11-14
wildcard.dev1017.slack.comdevNot in the scope2026-11-14
dev1018.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1018.slack.comdevNot in the scope2026-11-14
wildcard.dev1018.slack.comdevNot in the scope2026-11-14
dev1019.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1019.slack.comdevNot in the scope2026-11-14
wildcard.dev1019.slack.comdevNot in the scope2026-11-14
dev102.slack.comdevNot in the scope2026-11-14
enterprise.dev102.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev102.slack.comdevNot in the scope2026-11-14
wildcard.dev102.slack.comdevNot in the scope2026-11-14
dev1020.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1020.slack.comdevNot in the scope2026-11-14
wildcard.dev1020.slack.comdevNot in the scope2026-11-14
dev1021.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1021.slack.comdevNot in the scope2026-11-14
wildcard.dev1021.slack.comdevNot in the scope2026-11-14
dev1022.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1022.slack.comdevNot in the scope2026-11-14
wildcard.dev1022.slack.comdevNot in the scope2026-11-14
dev1023.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1023.slack.comdevNot in the scope2026-11-14
wildcard.dev1023.slack.comdevNot in the scope2026-11-14
dev1024.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1024.slack.comdevNot in the scope2026-11-14
wildcard.dev1024.slack.comdevNot in the scope2026-11-14
dev1025.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1025.slack.comdevNot in the scope2026-11-14
wildcard.dev1025.slack.comdevNot in the scope2026-11-14
dev1026.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1026.slack.comdevNot in the scope2026-11-14
wildcard.dev1026.slack.comdevNot in the scope2026-11-14
dev1027.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1027.slack.comdevNot in the scope2026-11-14
wildcard.dev1027.slack.comdevNot in the scope2026-11-14
dev1028.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1028.slack.comdevNot in the scope2026-11-14
wildcard.dev1028.slack.comdevNot in the scope2026-11-14
dev1029.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1029.slack.comdevNot in the scope2026-11-14
wildcard.dev1029.slack.comdevNot in the scope2026-11-14
dev103.slack.comdevNot in the scope2026-11-14
enterprise.dev103.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev103.slack.comdevNot in the scope2026-11-14
wildcard.dev103.slack.comdevNot in the scope2026-11-14
dev1030.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1030.slack.comdevNot in the scope2026-11-14
wildcard.dev1030.slack.comdevNot in the scope2026-11-14
dev1031.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1031.slack.comdevNot in the scope2026-11-14
wildcard.dev1031.slack.comdevNot in the scope2026-11-14
dev1032.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1032.slack.comdevNot in the scope2026-11-14
wildcard.dev1032.slack.comdevNot in the scope2026-11-14
dev1033.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1033.slack.comdevNot in the scope2026-11-14
wildcard.dev1033.slack.comdevNot in the scope2026-11-14
dev1034.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1034.slack.comdevNot in the scope2026-11-14
wildcard.dev1034.slack.comdevNot in the scope2026-11-14
dev1035.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1035.slack.comdevNot in the scope2026-11-14
wildcard.dev1035.slack.comdevNot in the scope2026-11-14
dev1036.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1036.slack.comdevNot in the scope2026-11-14
wildcard.dev1036.slack.comdevNot in the scope2026-11-14
dev1037.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1037.slack.comdevNot in the scope2026-11-14
wildcard.dev1037.slack.comdevNot in the scope2026-11-14
dev1038.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1038.slack.comdevNot in the scope2026-11-14
wildcard.dev1038.slack.comdevNot in the scope2026-11-14
dev1039.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1039.slack.comdevNot in the scope2026-11-14
wildcard.dev1039.slack.comdevNot in the scope2026-11-14
dev104.slack.comdevNot in the scope2026-11-14
enterprise.dev104.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev104.slack.comdevNot in the scope2026-11-14
wildcard.dev104.slack.comdevNot in the scope2026-11-14
dev1040.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1040.slack.comdevNot in the scope2026-11-14
wildcard.dev1040.slack.comdevNot in the scope2026-11-14
dev1041.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1041.slack.comdevNot in the scope2026-11-14
wildcard.dev1041.slack.comdevNot in the scope2026-11-14
dev1042.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1042.slack.comdevNot in the scope2026-11-14

20,412 names are covered by the program's own scope; 7 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.

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