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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
asb.quip.comIn scope2026-11-14
asc.quip.comIn scope2026-11-14
ascentlaw.quip.comIn scope2026-11-14
asd.quip.comIn scope2026-11-14
asdasd.quip.comIn scope2026-11-14
asdf.quip.comIn scope2026-11-14
asdfg.quip.comIn scope2026-11-14
asdfghjkl.quip.comIn scope2026-11-14
asdzxc.quip.comIn scope2026-11-14
asetus1.quip.comIn scope2026-11-14
asetus2.quip.comIn scope2026-11-14
asetus3.quip.comIn scope2026-11-14
asf.quip.comIn scope2026-11-14
asg.quip.comIn scope2026-11-14
asgard.quip.comIn scope2026-11-14
ash.quip.comIn scope2026-11-14
asha.quip.comIn scope2026-11-14
asher.quip.comIn scope2026-11-14
ashi.quip.comIn scope2026-11-14
ashish.quip.comIn scope2026-11-14
ashley.quip.comIn scope2026-11-14
ashley-wood.quip.comIn scope2026-11-14
asi.quip.comIn scope2026-11-14
asia.quip.comIn scope2026-11-14
www.asia.quip.comIn scope2026-11-14
asian.quip.comIn scope2026-11-14
ask.quip.comIn scope2026-11-14
www.ask.quip.comIn scope2026-11-14
askuity-home-depot.quip.comIn scope2026-11-14
aslan.quip.comIn scope2026-11-14
aso.quip.comIn scope2026-11-14
asp.quip.comIn scope2026-11-14
asp1.quip.comIn scope2026-11-14
asp2.quip.comIn scope2026-11-14
aspera.quip.comIn scope2026-11-14
aspire.quip.comIn scope2026-11-14
asr.quip.comIn scope2026-11-14
ass.quip.comIn scope2026-11-14
assassin.quip.comIn scope2026-11-14
asset.quip.comIn scope2026-11-14
assets.quip.comIn scope2026-11-14
www.assets.quip.comIn scope2026-11-14
assets1.quip.comIn scope2026-11-14
assets2.quip.comIn scope2026-11-14
assets3.quip.comIn scope2026-11-14
assets4.quip.comIn scope2026-11-14
assist.quip.comIn scope2026-11-14
assistance.quip.comIn scope2026-11-14
assistenza.quip.comIn scope2026-11-14
asso.quip.comIn scope2026-11-14
association.quip.comIn scope2026-11-14
ast.quip.comIn scope2026-11-14
asta.quip.comIn scope2026-11-14
aster.quip.comIn scope2026-11-14
asterisk.quip.comIn scope2026-11-14
asterisk1.quip.comIn scope2026-11-14
asterisk2.quip.comIn scope2026-11-14
asterix.quip.comIn scope2026-11-14
astra.quip.comIn scope2026-11-14
astrahan.quip.comIn scope2026-11-14
astral.quip.comIn scope2026-11-14
astro.quip.comIn scope2026-11-14
astrology.quip.comIn scope2026-11-14
astronomy.quip.comIn scope2026-11-14
astroturfcontractors.quip.comIn scope2026-11-14
astun.quip.comIn scope2026-11-14
asus.quip.comIn scope2026-11-14
async.quip.comIn scope2026-11-14
at.quip.comIn scope2026-11-14
www.at.quip.comIn scope2026-11-14
ata.quip.comIn scope2026-11-14
ataman.quip.comIn scope2026-11-14
atb.quip.comIn scope2026-11-14
atc.quip.comIn scope2026-11-14
ateam.quip.comIn scope2026-11-14
atelier.quip.comIn scope2026-11-14
atendimento.quip.comIn scope2026-11-14
atenea.quip.comIn scope2026-11-14
atento-brasil2910.quip.comIn scope2026-11-14
atest.quip.comIn scope2026-11-14
athena.quip.comIn scope2026-11-14
athens.quip.comIn scope2026-11-14
athletics.quip.comIn scope2026-11-14
athleticsequipment.quip.comIn scope2026-11-14
athos.quip.comIn scope2026-11-14
ati.quip.comIn scope2026-11-14
atl.quip.comIn scope2026-11-14
atlant.quip.comIn scope2026-11-14
atlanta.quip.comIn scope2026-11-14
www.atlanta.quip.comIn scope2026-11-14
atlantic.quip.comIn scope2026-11-14
atlantis.quip.comIn scope2026-11-14
atlas.quip.comIn scope2026-11-14
atlas-x.quip.comIn scope2026-11-14
atlg-carpet-cleaning-canberra.quip.comIn scope2026-11-14
atlg-pest-control-adelaide.quip.comIn scope2026-11-14
atmail.quip.comIn scope2026-11-14
atom.quip.comIn scope2026-11-14
atomic.quip.comIn scope2026-11-14
atrium.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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