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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
atropos.quip.comIn scope2026-11-14
ats.quip.comIn scope2026-11-14
att.quip.comIn scope2026-11-14
attach.quip.comIn scope2026-11-14
attain-projects.quip.comIn scope2026-11-14
attendance.quip.comIn scope2026-11-14
attsf.quip.comIn scope2026-11-14
au.quip.comIn scope2026-11-14
www.au.quip.comIn scope2026-11-14
auction.quip.comIn scope2026-11-14
www.auction.quip.comIn scope2026-11-14
auctions.quip.comIn scope2026-11-14
www.auctions.quip.comIn scope2026-11-14
audi.quip.comIn scope2026-11-14
audienceresponsesystems.quip.comIn scope2026-11-14
audio.quip.comIn scope2026-11-14
www.audio.quip.comIn scope2026-11-14
audit.quip.comIn scope2026-11-14
audition.quip.comIn scope2026-11-14
audrey.quip.comIn scope2026-11-14
august.quip.comIn scope2026-11-14
auk.quip.comIn scope2026-11-14
aukcje.quip.comIn scope2026-11-14
aukro.quip.comIn scope2026-11-14
aula.quip.comIn scope2026-11-14
aulavirtual.quip.comIn scope2026-11-14
aura.quip.comIn scope2026-11-14
aurelia.quip.comIn scope2026-11-14
auriga.quip.comIn scope2026-11-14
aurora.quip.comIn scope2026-11-14
www.aurora.quip.comIn scope2026-11-14
auroraimaging.quip.comIn scope2026-11-14
aussie.quip.comIn scope2026-11-14
aussie-outdoor.quip.comIn scope2026-11-14
austin.quip.comIn scope2026-11-14
australia.quip.comIn scope2026-11-14
www.australia.quip.comIn scope2026-11-14
austria.quip.comIn scope2026-11-14
auth.quip.comauthIn scope2026-11-14
auth-hack.quip.comauthIn scope2026-11-14
radius.auth.quip.comauthIn scope2026-11-14
auth1.quip.comauthIn scope2026-11-14
auth2.quip.comauthIn scope2026-11-14
auth3.quip.comauthIn scope2026-11-14
author.quip.comIn scope2026-11-14
www.author.quip.comIn scope2026-11-14
authors.quip.comIn scope2026-11-14
auto.quip.comIn scope2026-11-14
www.auto.quip.comIn scope2026-11-14
autocad.quip.comIn scope2026-11-14
autoconfig.quip.comIn scope2026-11-14
autodesk.quip.comIn scope2026-11-14
autodiscover.quip.commailIn scope2026-11-14
autodiscover-redirect.quip.commailIn scope2026-11-14
automail.quip.comIn scope2026-11-14
automatedaccess.quip.comIn scope2026-11-14
automation.quip.comIn scope2026-11-14
automationanywhere.quip.comIn scope2026-11-14
automotive.quip.comIn scope2026-11-14
autoplataforma.quip.comIn scope2026-11-14
autoreply.quip.comIn scope2026-11-14
autoresponder.quip.comIn scope2026-11-14
autos.quip.comIn scope2026-11-14
www.autos.quip.comIn scope2026-11-14
autotailor.quip.comIn scope2026-11-14
av.quip.comIn scope2026-11-14
www.av.quip.comIn scope2026-11-14
av1.quip.comIn scope2026-11-14
av8d.quip.comIn scope2026-11-14
mail.av8d.quip.commailIn scope2026-11-14
ava.quip.comIn scope2026-11-14
www.ava.quip.comIn scope2026-11-14
avalanche.quip.comIn scope2026-11-14
avalon.quip.comIn scope2026-11-14
avankia.quip.comIn scope2026-11-14
avasin.quip.comIn scope2026-11-14
avatar.quip.comIn scope2026-11-14
avatars.quip.comIn scope2026-11-14
avcome.quip.comIn scope2026-11-14
mail.avcome.quip.commailIn scope2026-11-14
avedge.quip.comIn scope2026-11-14
avenger.quip.comIn scope2026-11-14
avenue-law-firm.quip.comIn scope2026-11-14
averagejoesent.quip.comIn scope2026-11-14
avg.quip.comIn scope2026-11-14
avia.quip.comIn scope2026-11-14
www.avia.quip.comIn scope2026-11-14
aviation.quip.comIn scope2026-11-14
aviator.quip.comIn scope2026-11-14
avl.quip.comIn scope2026-11-14
avm.quip.comIn scope2026-11-14
avnet.quip.comIn scope2026-11-14
avon.quip.comIn scope2026-11-14
avril.quip.comIn scope2026-11-14
avs.quip.comIn scope2026-11-14
avto.quip.comIn scope2026-11-14
www.avto.quip.comIn scope2026-11-14
aw.quip.comIn scope2026-11-14
awa.quip.comIn scope2026-11-14
award.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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