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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
slack-pantry.dev.slack.comdevNot in the scope2026-11-14
status.dev.slack.comdev, monitoringNot in the scope2026-11-14
tinyspeck.dev.slack.comdevNot in the scope2026-11-14
webdisk.dev.slack.comdevNot in the scope2026-11-14
wiki.dev.slack.comdev, toolsNot in the scope2026-11-14
wildcard.dev.slack.comdevNot in the scope2026-11-14
wss-backup.dev.slack.comNewdata, devNot in the scope2026-11-15
wss-mobile.dev.slack.comNewdevNot in the scope2026-11-15
wss-primary.dev.slack.comdevNot in the scope2026-11-14
www.dev.slack.comdevNot in the scope2026-11-14
dev0.slack.comdevNot in the scope2026-11-14
dev01.slack.comdevNot in the scope2026-11-14
dev02.slack.comdevNot in the scope2026-11-14
dev1.slack.comdevNot in the scope2026-11-14
dev1-2019-ncov-hackathon.slack.comdevNot in the scope2026-11-14
dev1-antivirus.slack.comdevNot in the scope2026-11-14
dev1-code4covid.slack.comdevNot in the scope2026-11-14
dev1-covid.slack.comdevNot in the scope2026-11-14
dev1-covid-19volunteersuk.slack.comdevNot in the scope2026-11-14
dev1-covid-solutions-com.slack.comdevNot in the scope2026-11-14
dev1-covid19-task-force.slack.comdevNot in the scope2026-11-14
dev1-covid19peoplehelp.slack.comdevNot in the scope2026-11-14
dev1-covid19projec-kyi7956.slack.comdevNot in the scope2026-11-14
dev1-dataagainstcovid-19.slack.comdevNot in the scope2026-11-14
dev1-endcoronaviru-mcd1821.slack.comdevNot in the scope2026-11-14
dev1-gentilsvirus.slack.comdevNot in the scope2026-11-14
dev1-rheumcovid-19registry.slack.comdev, toolsNot in the scope2026-11-14
dev1-sars-cov-2covid-19.slack.comdevNot in the scope2026-11-14
dev1-tech4covid19.slack.comdevNot in the scope2026-11-14
2015-06-25.dev1.slack.comdevNot in the scope2026-11-14
covid-19list.dev1.slack.comdevNot in the scope2026-11-14
covid19cz.dev1.slack.comdevNot in the scope2026-11-14
covid19data.dev1.slack.comdevNot in the scope2026-11-14
covidsolutions.dev1.slack.comdevNot in the scope2026-11-14
covidvu.dev1.slack.comdevNot in the scope2026-11-14
endcoronaviru-mcd1821.dev1.slack.comdevNot in the scope2026-11-14
enterprise.dev1.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1.slack.comdevNot in the scope2026-11-14
franklincovey.dev1.slack.comdevNot in the scope2026-11-14
gentilsvirus.dev1.slack.comdevNot in the scope2026-11-14
globalcovidhackathon.dev1.slack.comdevNot in the scope2026-11-14
jogl-covid-19.dev1.slack.comdevNot in the scope2026-11-14
opencoverui.dev1.slack.comdevNot in the scope2026-11-14
rheumcovid-19registry.dev1.slack.comdev, toolsNot in the scope2026-11-14
sars-cov-2covid-19.dev1.slack.comdevNot in the scope2026-11-14
wildcard.dev1.slack.comdevNot in the scope2026-11-14
wirvsvirus.dev1.slack.comdevNot in the scope2026-11-14
dev10.slack.comdevNot in the scope2026-11-14
2015-06-25.dev10.slack.comdevNot in the scope2026-11-14
enterprise.dev10.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev10.slack.comdevNot in the scope2026-11-14
wildcard.dev10.slack.comdevNot in the scope2026-11-14
dev100.slack.comdevNot in the scope2026-11-14
enterprise.dev100.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev100.slack.comdevNot in the scope2026-11-14
wildcard.dev100.slack.comdevNot in the scope2026-11-14
dev1000.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1000.slack.comdevNot in the scope2026-11-14
wildcard.dev1000.slack.comdevNot in the scope2026-11-14
dev1001.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1001.slack.comdevNot in the scope2026-11-14
wildcard.dev1001.slack.comdevNot in the scope2026-11-14
dev1002.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1002.slack.comdevNot in the scope2026-11-14
wildcard.dev1002.slack.comdevNot in the scope2026-11-14
dev1003.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1003.slack.comdevNot in the scope2026-11-14
wildcard.dev1003.slack.comdevNot in the scope2026-11-14
dev1004.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1004.slack.comdevNot in the scope2026-11-14
wildcard.dev1004.slack.comdevNot in the scope2026-11-14
dev1005.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1005.slack.comdevNot in the scope2026-11-14
wildcard.dev1005.slack.comdevNot in the scope2026-11-14
dev1006.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1006.slack.comdevNot in the scope2026-11-14
wildcard.dev1006.slack.comdevNot in the scope2026-11-14
dev1007.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1007.slack.comdevNot in the scope2026-11-14
wildcard.dev1007.slack.comdevNot in the scope2026-11-14
dev1008.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1008.slack.comdevNot in the scope2026-11-14
wildcard.dev1008.slack.comdevNot in the scope2026-11-14
dev1009.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1009.slack.comdevNot in the scope2026-11-14
wildcard.dev1009.slack.comdevNot in the scope2026-11-14
dev101.slack.comdevNot in the scope2026-11-14
enterprise.dev101.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev101.slack.comdevNot in the scope2026-11-14
wildcard.dev101.slack.comdevNot in the scope2026-11-14
dev1010.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1010.slack.comdevNot in the scope2026-11-14
wildcard.dev1010.slack.comdevNot in the scope2026-11-14
dev1011.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1011.slack.comdevNot in the scope2026-11-14
wildcard.dev1011.slack.comdevNot in the scope2026-11-14
dev1012.slack.comdevNot in the scope2026-11-14
wildcard.enterprise.dev1012.slack.comdevNot in the scope2026-11-14
wildcard.dev1012.slack.comdevNot in the scope2026-11-14
dev1013.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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