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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
develop.quip.comdevIn scope2026-11-14
www.develop.quip.comdevIn scope2026-11-14
developer.quip.comIn scope2026-11-14
developers.quip.comIn scope2026-11-14
development.quip.comdevIn scope2026-11-14
webdisk.development.quip.comdevIn scope2026-11-14
www.development.quip.comdevIn scope2026-11-14
devenson.quip.comIn scope2026-11-14
devforum.quip.comIn scope2026-11-14
devil.quip.comIn scope2026-11-14
devils.quip.comIn scope2026-11-14
devmads.quip.comIn scope2026-11-14
devmail.quip.comIn scope2026-11-14
devon.quip.comIn scope2026-11-14
devsecure.quip.comIn scope2026-11-14
devserver.quip.comIn scope2026-11-14
devsite.quip.comIn scope2026-11-14
devtest.quip.comIn scope2026-11-14
devwww.quip.comIn scope2026-11-14
dewey.quip.comIn scope2026-11-14
dex.quip.comIn scope2026-11-14
dexter.quip.comIn scope2026-11-14
df.quip.comIn scope2026-11-14
dfeef.quip.comIn scope2026-11-14
dfp.quip.comIn scope2026-11-14
dg.quip.comIn scope2026-11-14
dh.quip.comIn scope2026-11-14
dharma.quip.comIn scope2026-11-14
dhcp.quip.comIn scope2026-11-14
dhcp1.quip.comIn scope2026-11-14
dhcp2.quip.comIn scope2026-11-14
dhl.quip.comIn scope2026-11-14
dhl-xpress.quip.comIn scope2026-11-14
dhs.quip.comIn scope2026-11-14
di.quip.comIn scope2026-11-14
dia.quip.comIn scope2026-11-14
diablo.quip.comIn scope2026-11-14
diabolo.quip.comIn scope2026-11-14
dial.quip.comIn scope2026-11-14
dialer.quip.comIn scope2026-11-14
dialin.quip.comIn scope2026-11-14
dialog.quip.comIn scope2026-11-14
dialup.quip.comIn scope2026-11-14
diamant.quip.comIn scope2026-11-14
diamante.quip.comIn scope2026-11-14
diamond.quip.comIn scope2026-11-14
diana.quip.comIn scope2026-11-14
diane.quip.comIn scope2026-11-14
diary.quip.comIn scope2026-11-14
diaspora.quip.comIn scope2026-11-14
dic.quip.comIn scope2026-11-14
dichtheitsprufung.quip.comIn scope2026-11-14
dichvuvietbaichuanseo.quip.comIn scope2026-11-14
dickson.quip.comIn scope2026-11-14
dict.quip.comIn scope2026-11-14
dictionary.quip.comIn scope2026-11-14
www.dictionary.quip.comIn scope2026-11-14
diddy.quip.comIn scope2026-11-14
didi.quip.comIn scope2026-11-14
diego.quip.comIn scope2026-11-14
diemthi.quip.comIn scope2026-11-14
diendan.quip.comIn scope2026-11-14
dienmaythanhan.quip.comIn scope2026-11-14
diennhatcom.quip.comIn scope2026-11-14
diepdiep994.quip.comIn scope2026-11-14
diesel.quip.comIn scope2026-11-14
diet.quip.comIn scope2026-11-14
dieta.quip.comIn scope2026-11-14
dieukhacchanmay.quip.comIn scope2026-11-14
diffusion.quip.comIn scope2026-11-14
dig.quip.comIn scope2026-11-14
digecosys.quip.comIn scope2026-11-14
digg.quip.comIn scope2026-11-14
digi.quip.comIn scope2026-11-14
www.digi.quip.comIn scope2026-11-14
digilib.quip.comIn scope2026-11-14
digisys.quip.comIn scope2026-11-14
digit.quip.comIn scope2026-11-14
digital.quip.comIn scope2026-11-14
www.digital.quip.comIn scope2026-11-14
digitalmedia.quip.comIn scope2026-11-14
digitalsignage.quip.comIn scope2026-11-14
dima.quip.comIn scope2026-11-14
ding.quip.comIn scope2026-11-14
dingdong.quip.comIn scope2026-11-14
dingo.quip.comIn scope2026-11-14
dingorio.quip.comIn scope2026-11-14
dino.quip.comIn scope2026-11-14
dinosaur.quip.comIn scope2026-11-14
dio.quip.comIn scope2026-11-14
dione.quip.comIn scope2026-11-14
dionysos.quip.comIn scope2026-11-14
dionysus.quip.comIn scope2026-11-14
dipsy.quip.comIn scope2026-11-14
dir.quip.comIn scope2026-11-14
www.dir.quip.comIn scope2026-11-14
dirac.quip.comIn scope2026-11-14
direct.quip.comIn scope2026-11-14
director.quip.comIn scope2026-11-14
autodiscover.director.quip.commailIn 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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