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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
backup6.quip.comdataIn scope2026-11-14
backupmx.quip.comIn scope2026-11-14
backups.quip.comdataIn scope2026-11-14
backupserver.quip.comIn scope2026-11-14
backyard.quip.comIn scope2026-11-14
baco.quip.comIn scope2026-11-14
bacon.quip.comIn scope2026-11-14
bacula.quip.comIn scope2026-11-14
bad.quip.comIn scope2026-11-14
bada.quip.comIn scope2026-11-14
badboy.quip.comIn scope2026-11-14
badger.quip.comIn scope2026-11-14
bae.quip.comIn scope2026-11-14
baghdad.quip.comIn scope2026-11-14
baikal.quip.comIn scope2026-11-14
bailey.quip.comIn scope2026-11-14
bailiffadvice.quip.comIn scope2026-11-14
baito.quip.comIn scope2026-11-14
bak.quip.comlegacyIn scope2026-11-14
baker.quip.comIn scope2026-11-14
baku.quip.comIn scope2026-11-14
balance.quip.comIn scope2026-11-14
balancer.quip.comIn scope2026-11-14
balder.quip.comIn scope2026-11-14
bali.quip.comIn scope2026-11-14
www.bali.quip.comIn scope2026-11-14
baloo.quip.comIn scope2026-11-14
baltimore.quip.comIn scope2026-11-14
bam.quip.comIn scope2026-11-14
bambi.quip.comIn scope2026-11-14
bambino.quip.comIn scope2026-11-14
bamboo.quip.comciIn scope2026-11-14
ban.quip.comIn scope2026-11-14
banana.quip.comIn scope2026-11-14
bancuri.quip.comIn scope2026-11-14
www.bancuri.quip.comIn scope2026-11-14
bandar.quip.comIn scope2026-11-14
bandung.quip.comIn scope2026-11-14
bandwidth.quip.comIn scope2026-11-14
bane.quip.comIn scope2026-11-14
bang.quip.comIn scope2026-11-14
bangbang.quip.comIn scope2026-11-14
bangbros.quip.comIn scope2026-11-14
bangkok.quip.comIn scope2026-11-14
bank.quip.comIn scope2026-11-14
www.bank.quip.comIn scope2026-11-14
banner.quip.comIn scope2026-11-14
www.banner.quip.comIn scope2026-11-14
banner2.quip.comIn scope2026-11-14
banners.quip.comIn scope2026-11-14
www.banners.quip.comIn scope2026-11-14
baobab.quip.comIn scope2026-11-14
baobao.quip.comIn scope2026-11-14
bap.quip.comIn scope2026-11-14
bappeda.quip.comIn scope2026-11-14
bar.quip.comIn scope2026-11-14
bara.quip.comIn scope2026-11-14
baran.quip.comIn scope2026-11-14
barbados.quip.comIn scope2026-11-14
barbara.quip.comIn scope2026-11-14
barcelona.quip.comIn scope2026-11-14
barcode.quip.comIn scope2026-11-14
barlow.quip.comIn scope2026-11-14
barnaul.quip.comIn scope2026-11-14
www.barnaul.quip.comIn scope2026-11-14
barney.quip.comIn scope2026-11-14
baron.quip.comIn scope2026-11-14
barra.quip.comIn scope2026-11-14
barracuda.quip.comIn scope2026-11-14
barracuda1.quip.comIn scope2026-11-14
barracuda2.quip.comIn scope2026-11-14
barrie.quip.comIn scope2026-11-14
barry.quip.comIn scope2026-11-14
bars.quip.comIn scope2026-11-14
bart.quip.comIn scope2026-11-14
bas.quip.comIn scope2026-11-14
base.quip.comIn scope2026-11-14
www.base.quip.comIn scope2026-11-14
base1.quip.comIn scope2026-11-14
base2.quip.comIn scope2026-11-14
baseball.quip.comIn scope2026-11-14
basel.quip.comIn scope2026-11-14
bash.quip.comIn scope2026-11-14
basic.quip.comIn scope2026-11-14
basij.quip.comIn scope2026-11-14
basil.quip.comIn scope2026-11-14
basket.quip.comIn scope2026-11-14
basketballcourtconstruction.quip.comIn scope2026-11-14
basketballcourtcontractors.quip.comIn scope2026-11-14
bass.quip.comIn scope2026-11-14
bastion.quip.comIn scope2026-11-14
bat.quip.comIn scope2026-11-14
batch.quip.comIn scope2026-11-14
batman.quip.comIn scope2026-11-14
battle.quip.comIn scope2026-11-14
bauer.quip.comIn scope2026-11-14
bauhaus.quip.comIn scope2026-11-14
bay.quip.comIn scope2026-11-14
bayaasiin.quip.comIn scope2026-11-14
bayairgoldcoast.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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Updated