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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:VPN and remote access
First seen
Text fileClear filters173 names
Subdomains of Slack
NameScopeFirst seen
access.quip.comvpnIn scope2026-11-14
www.access.quip.comvpnIn scope2026-11-14
access1.quip.comvpnIn scope2026-11-14
access2.quip.comvpnIn scope2026-11-14
citrix.quip.comvpnIn scope2026-11-14
citrix1.quip.comvpnIn scope2026-11-14
citrix2.quip.comvpnIn scope2026-11-14
ic-asa5520-vpn-fw.quip.comvpnIn scope2026-11-14
kesc-vpn.quip.comvpnIn scope2026-11-14
openvpn.quip.comvpnIn scope2026-11-14
pw.openvpn.quip.comvpnIn scope2026-11-14
rdp.quip.comvpnIn scope2026-11-14
rdweb.quip.comvpnIn scope2026-11-14
remote.quip.comvpnIn scope2026-11-14
www.remote.quip.comvpnIn scope2026-11-14
remote1.quip.comvpnIn scope2026-11-14
remote2.quip.comvpnIn scope2026-11-14
ssl-vpn.quip.comvpnIn scope2026-11-14
sslvpn.quip.comvpnIn scope2026-11-14
ul-asa5520-vpn-fw.quip.comvpnIn scope2026-11-14
vdi.quip.comvpnIn scope2026-11-14
vpn.quip.comvpnIn scope2026-11-14
vpn-test.quip.comtest, vpnIn scope2026-11-14
vpn-uk.quip.comvpnIn scope2026-11-14
www.vpn.quip.comvpnIn scope2026-11-14
vpn01.quip.comvpnIn scope2026-11-14
vpn02.quip.comvpnIn scope2026-11-14
vpn1.quip.comvpnIn scope2026-11-14
vpn2.quip.comvpnIn scope2026-11-14
vpn3.quip.comvpnIn scope2026-11-14
vpn4.quip.comvpnIn scope2026-11-14
vpn5.quip.comvpnIn scope2026-11-14
access.slack.comvpnNot in the scope2026-11-14
access-ci.slack.comci, vpnNot in the scope2026-11-14
access-nri.slack.comvpnNot in the scope2026-11-14
access-watch.slack.comvpnNot in the scope2026-11-14
www.access.slack.comvpnNot in the scope2026-11-14
access1.slack.comvpnNot in the scope2026-11-14
access2.slack.comvpnNot in the scope2026-11-14
access2perspectives.slack.comvpnNot in the scope2026-11-14
citrix.api.slack.comapi, vpnNot in the scope2026-11-14
remote.api.slack.comapi, vpnNot in the scope2026-11-14
sslvpn.api.slack.comapi, vpnNot in the scope2026-11-14
vpn.api.slack.comapi, vpnNot in the scope2026-11-14
citrix.app.slack.comvpnNot in the scope2026-11-14
remote.app.slack.comvpnNot in the scope2026-11-14
sslvpn.app.slack.comvpnNot in the scope2026-11-14
vpn.app.slack.comvpnNot in the scope2026-11-14
blue-horizon-io.slack.comvpnNot in the scope2026-11-14
citrix.slack.comvpnNot in the scope2026-11-14
citrix1.slack.comvpnNot in the scope2026-11-14
citrix2.slack.comvpnNot in the scope2026-11-14
vpn.code4covid.slack.comvpnNot in the scope2026-11-14
vpn.codevscovid19.slack.comvpnNot in the scope2026-11-14
codevscovid19vpn.slack.comvpnNot in the scope2026-11-14
vpn.covid-19list.slack.comvpnNot in the scope2026-11-14
vpn.covid-19volunteersuk.slack.comvpnNot in the scope2026-11-14
covid-atlas-vpn.slack.comvpnNot in the scope2026-11-14
covid-solutions-com-vpn.slack.comvpnNot in the scope2026-11-14
vpn.covid.slack.comvpnNot in the scope2026-11-14
covid19-ventfinder-vpn.slack.comvpnNot in the scope2026-11-14
vpn.covid19-ventfinder.slack.comvpnNot in the scope2026-11-14
vpn.covid19cz.slack.comvpnNot in the scope2026-11-14
vpn.covid19data.slack.comvpnNot in the scope2026-11-14
vpn.covid19peoplehelp.slack.comvpnNot in the scope2026-11-14
covid19projec-kyi7956-vpn.slack.comvpnNot in the scope2026-11-14
vpn.covid19projec-kyi7956.slack.comvpnNot in the scope2026-11-14
covidhack-workspace-vpn.slack.comvpnNot in the scope2026-11-14
vpn.covidhack-workspace.slack.comvpnNot in the scope2026-11-14
vpn.covidsolutions.slack.comvpnNot in the scope2026-11-14
covidvu-vpn.slack.comvpnNot in the scope2026-11-14
endcoronaviru-mcd1821-vpn.slack.comvpnNot in the scope2026-11-14
vpn.endcoronaviru-mcd1821.slack.comvpnNot in the scope2026-11-14
endcoronaviru-mcd1821vpn.slack.comvpnNot in the scope2026-11-14
vpn.ethiopia-covid19.slack.comvpnNot in the scope2026-11-14
ethiopia-covid19vpn.slack.comvpnNot in the scope2026-11-14
franklincovey-vpn.slack.comvpnNot in the scope2026-11-14
vpn.franklincovey.slack.comvpnNot in the scope2026-11-14
gentilsvirus-vpn.slack.comvpnNot in the scope2026-11-14
vpn.globalcovidhackathon.slack.comvpnNot in the scope2026-11-14
hackathoncovid19vpn.slack.comvpnNot in the scope2026-11-14
hackcovid19-vpn.slack.comvpnNot in the scope2026-11-14
hackcovid19vpn.slack.comvpnNot in the scope2026-11-14
horizon.slack.comvpnNot in the scope2026-11-14
horizon31.slack.comvpnNot in the scope2026-11-14
horizon4.slack.comvpnNot in the scope2026-11-14
ic-asa5520-vpn-fw.slack.comvpnNot in the scope2026-11-14
kesc-vpn.slack.comvpnNot in the scope2026-11-14
level-access.slack.comvpnNot in the scope2026-11-14
makersforcovid-19-vpn.slack.comvpnNot in the scope2026-11-14
vpn.makersforcovid-19.slack.comvpnNot in the scope2026-11-14
makervsvirus-vpn.slack.comvpnNot in the scope2026-11-14
vpn.mbruhackcovid19.slack.comvpnNot in the scope2026-11-14
opal-access.slack.comvpnNot in the scope2026-11-14
vpn.open-covid19.slack.comvpnNot in the scope2026-11-14
vpn.opencover.slack.comvpnNot in the scope2026-11-14
vpn.opencoverui.slack.comvpnNot in the scope2026-11-14
openvpn.slack.comvpnNot in the scope2026-11-14
pw.openvpn.slack.comvpnNot in the scope2026-11-14
peese-covid-vpn.slack.comvpnNot 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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