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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
First seen
Text file137,436 names
Subdomains of Slack
NameScopeFirst seen
chantal.quip.comIn scope2026-11-14
chaos.quip.comIn scope2026-11-14
chaotic.quip.comIn scope2026-11-14
chaplin.quip.comIn scope2026-11-14
charge.quip.comIn scope2026-11-14
www.charge.quip.comIn scope2026-11-14
charger.quip.comIn scope2026-11-14
charity.quip.comIn scope2026-11-14
charles.quip.comIn scope2026-11-14
charleston.quip.comIn scope2026-11-14
charlie.quip.comIn scope2026-11-14
charlie-travel-diary.quip.comIn scope2026-11-14
charlotte.quip.comIn scope2026-11-14
charm.quip.comIn scope2026-11-14
charmed.quip.comIn scope2026-11-14
charon.quip.comIn scope2026-11-14
charts.quip.comIn scope2026-11-14
chase.quip.comIn scope2026-11-14
chat.quip.comIn scope2026-11-14
autoconfig.chat.quip.comIn scope2026-11-14
autodiscover.chat.quip.commailIn scope2026-11-14
webdisk.chat.quip.comIn scope2026-11-14
www.chat.quip.comIn scope2026-11-14
chat1.quip.comIn scope2026-11-14
chat2.quip.comIn scope2026-11-14
chat4.quip.comIn scope2026-11-14
chatbox.quip.comIn scope2026-11-14
chatswoodcbddental.quip.comIn scope2026-11-14
chatter.quip.comIn scope2026-11-14
che.quip.comIn scope2026-11-14
www.che.quip.comIn scope2026-11-14
cheap.quip.comIn scope2026-11-14
cheap-flights-experte.quip.comIn scope2026-11-14
cheboksary.quip.comIn scope2026-11-14
check.quip.comIn scope2026-11-14
checkmate.quip.comIn scope2026-11-14
checkout.quip.comIn scope2026-11-14
checkpoint.quip.comIn scope2026-11-14
checkrelay.quip.comIn scope2026-11-14
checksrv.quip.comIn scope2026-11-14
cheers.quip.comIn scope2026-11-14
cheese.quip.comIn scope2026-11-14
cheetah.quip.comIn scope2026-11-14
chef.quip.comIn scope2026-11-14
www.chef.quip.comIn scope2026-11-14
chel.quip.comIn scope2026-11-14
chelsea.quip.comIn scope2026-11-14
chelyabinsk.quip.comIn scope2026-11-14
www.chelyabinsk.quip.comIn scope2026-11-14
chem.quip.comIn scope2026-11-14
www.chem.quip.comIn scope2026-11-14
chemie.quip.comIn scope2026-11-14
chemistry.quip.comIn scope2026-11-14
chen.quip.comIn scope2026-11-14
chennai.quip.comIn scope2026-11-14
cherokee.quip.comIn scope2026-11-14
chess.quip.comIn scope2026-11-14
chester.quip.comIn scope2026-11-14
chetan.quip.comIn scope2026-11-14
chevrolet.quip.comIn scope2026-11-14
www.chevrolet.quip.comIn scope2026-11-14
chevy.quip.comIn scope2026-11-14
chewbacca.quip.comIn scope2026-11-14
chewie.quip.comIn scope2026-11-14
cheyenne.quip.comIn scope2026-11-14
chi.quip.comIn scope2026-11-14
chiba.quip.comIn scope2026-11-14
chicago.quip.comIn scope2026-11-14
chicco.quip.comIn scope2026-11-14
chicken.quip.comIn scope2026-11-14
chief.quip.comIn scope2026-11-14
chihiro.quip.comIn scope2026-11-14
child.quip.comIn scope2026-11-14
children.quip.comIn scope2026-11-14
chile.quip.comIn scope2026-11-14
chili.quip.comIn scope2026-11-14
chill.quip.comIn scope2026-11-14
chillax.quip.comIn scope2026-11-14
chilli.quip.comIn scope2026-11-14
chimera.quip.comIn scope2026-11-14
chin.quip.comIn scope2026-11-14
china.quip.comIn scope2026-11-14
www.china.quip.comIn scope2026-11-14
chinese.quip.comIn scope2026-11-14
www.chinese.quip.comIn scope2026-11-14
chip.quip.comIn scope2026-11-14
chita.quip.comIn scope2026-11-14
chitchat.quip.comIn scope2026-11-14
chloe.quip.comIn scope2026-11-14
chm.quip.comIn scope2026-11-14
cho.quip.comIn scope2026-11-14
chocolate.quip.comIn scope2026-11-14
choose.quip.comIn scope2026-11-14
chou.quip.comIn scope2026-11-14
chouchou.quip.comIn scope2026-11-14
choxenang.quip.comIn scope2026-11-14
chris.quip.comIn scope2026-11-14
chrisgregg.quip.comIn scope2026-11-14
christian.quip.comIn scope2026-11-14
www.christian.quip.comIn 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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