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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:Build and CI
First seen
Text fileClear filters185 names
Subdomains of Slack
NameScopeFirst seen
argo.quip.comciIn scope2026-11-14
bamboo.quip.comciIn scope2026-11-14
build.quip.comciIn scope2026-11-14
www.build.quip.comciIn scope2026-11-14
ci.quip.comciIn scope2026-11-14
www.ci.quip.comciIn scope2026-11-14
jenkins.quip.comciIn scope2026-11-14
build.secure.quip.comciIn scope2026-11-14
summit-design-build-llc.quip.comciIn scope2026-11-14
travis.quip.comciIn scope2026-11-14
build.www.quip.comciIn scope2026-11-14
build-lohika.www.quip.comciIn scope2026-11-14
2019-ncov-hackathon-ci.slack.comciNot in the scope2026-11-14
ci.2019-ncov-hackathon.slack.comciNot in the scope2026-11-14
aam-ci-facilitators.slack.comciNot in the scope2026-11-14
access-ci.slack.comci, vpnNot in the scope2026-11-14
jenkins.antivirus.slack.comciNot in the scope2026-11-14
argo.slack.comciNot in the scope2026-11-14
bamboo.slack.comciNot in the scope2026-11-14
boston-drone-racing.slack.comciNot in the scope2026-11-14
build.slack.comciNot in the scope2026-11-14
build-core.slack.comciNot in the scope2026-11-14
build-to-learn.slack.comciNot in the scope2026-11-14
www.build.slack.comciNot in the scope2026-11-14
build2learn.slack.comciNot in the scope2026-11-14
buildkite-community.slack.comciNot in the scope2026-11-14
cc-ci.slack.comciNot in the scope2026-11-14
ci.slack.comciNot in the scope2026-11-14
ci-covid.slack.comciNot in the scope2026-11-14
ci-covid-19volunteersuk.slack.comciNot in the scope2026-11-14
ci-covid19projec-kyi7956.slack.comciNot in the scope2026-11-14
ci-covidvu.slack.comciNot in the scope2026-11-14
ci-dataagainstcovid-19.slack.comciNot in the scope2026-11-14
ci-endcoronaviru-mcd1821.slack.comciNot in the scope2026-11-14
ci-ethiopia-covid19.slack.comciNot in the scope2026-11-14
ci-franklincovey.slack.comciNot in the scope2026-11-14
ci-hackathoncovid19.slack.comciNot in the scope2026-11-14
ci-hackcovid19.slack.comciNot in the scope2026-11-14
ci-mbruhackcovid19.slack.comciNot in the scope2026-11-14
ci-sars-cov-2covid-19.slack.comciNot in the scope2026-11-14
ci-ucd-covid19.slack.comciNot in the scope2026-11-14
antivirus.ci.slack.comciNot in the scope2026-11-14
code4covid.ci.slack.comciNot in the scope2026-11-14
covid-solutions-com.ci.slack.comciNot in the scope2026-11-14
covid19cybert-qvl7792.ci.slack.comciNot in the scope2026-11-14
covid19projec-kyi7956.ci.slack.comciNot in the scope2026-11-14
covidvu.ci.slack.comciNot in the scope2026-11-14
endcoronaviru-mcd1821.ci.slack.comciNot in the scope2026-11-14
ethiopia-covid19.ci.slack.comciNot in the scope2026-11-14
euvsvirus.ci.slack.comciNot in the scope2026-11-14
hackcovid19.ci.slack.comciNot in the scope2026-11-14
jogl-covid-19.ci.slack.comciNot in the scope2026-11-14
makersforcovid-19.ci.slack.comciNot in the scope2026-11-14
opencover.ci.slack.comciNot in the scope2026-11-14
peese-covid.ci.slack.comciNot in the scope2026-11-14
rheumcovid-19registry.ci.slack.comci, toolsNot in the scope2026-11-14
sars-cov-2covid-19.ci.slack.comciNot in the scope2026-11-14
www.ci.slack.comciNot in the scope2026-11-14
code4covid-jenkins.slack.comciNot in the scope2026-11-14
codevscovid19-ci.slack.comciNot in the scope2026-11-14
codevscovid19jenkins.slack.comciNot in the scope2026-11-14
ci.covid-19list.slack.comciNot in the scope2026-11-14
covid-19volunteersuk-ci.slack.comciNot in the scope2026-11-14
covid-19volunteersuk-jenkins.slack.comciNot in the scope2026-11-14
covid-atlas-ci.slack.comciNot in the scope2026-11-14
jenkins.covid-atlas.slack.comciNot in the scope2026-11-14
covid-ci.slack.comciNot in the scope2026-11-14
covid-solutions-com-jenkins.slack.comciNot in the scope2026-11-14
ci.covid-solutions-com.slack.comciNot in the scope2026-11-14
ci.covid.slack.comciNot in the scope2026-11-14
covid19-task-force-ci.slack.comciNot in the scope2026-11-14
covid19-task-force-jenkins.slack.comciNot in the scope2026-11-14
ci.covid19-task-force.slack.comciNot in the scope2026-11-14
jenkins.covid19-task-force.slack.comciNot in the scope2026-11-14
covid19-ventfinder-jenkins.slack.comciNot in the scope2026-11-14
covid19cybert-qvl7792-ci.slack.comciNot in the scope2026-11-14
ci.covid19cybert-qvl7792.slack.comciNot in the scope2026-11-14
covid19cz-jenkins.slack.comciNot in the scope2026-11-14
ci.covid19cz.slack.comciNot in the scope2026-11-14
covid19data-ci.slack.comciNot in the scope2026-11-14
covid19peoplehelp-ci.slack.comciNot in the scope2026-11-14
covid19peoplehelp-jenkins.slack.comciNot in the scope2026-11-14
ci.covid19peoplehelp.slack.comciNot in the scope2026-11-14
jenkins.covid19projec-kyi7956.slack.comciNot in the scope2026-11-14
covid19projec-kyi7956jenkins.slack.comciNot in the scope2026-11-14
covidhack-workspace-jenkins.slack.comciNot in the scope2026-11-14
ci.covidhack-workspace.slack.comciNot in the scope2026-11-14
jenkins.covidhack-workspace.slack.comciNot in the scope2026-11-14
jenkins.covidsolutions.slack.comciNot in the scope2026-11-14
covidzero-ci.slack.comciNot in the scope2026-11-14
covidzero-jenkins.slack.comciNot in the scope2026-11-14
cyborg-build-support.slack.comciNot in the scope2026-11-14
dataagainstcovid-19-ci.slack.comciNot in the scope2026-11-14
ci.dataagainstcovid-19.slack.comciNot in the scope2026-11-14
jenkins.dataagainstcovid-19.slack.comciNot in the scope2026-11-14
dataagainstcovid-19jenkins.slack.comciNot in the scope2026-11-14
designsafe-ci.slack.comciNot in the scope2026-11-14
drone-the.slack.comciNot in the scope2026-11-14
endcoronaviru-mcd1821-ci.slack.comciNot in the scope2026-11-14
endcoronaviru-mcd1821-jenkins.slack.comciNot 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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