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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
dallasconcrete2.quip.comIn scope2026-11-14
dam.quip.comIn scope2026-11-14
damdam.quip.comIn scope2026-11-14
dame.quip.comIn scope2026-11-14
damian.quip.comIn scope2026-11-14
dan.quip.comIn scope2026-11-14
dana.quip.comIn scope2026-11-14
dance.quip.comIn scope2026-11-14
dangan.quip.comIn scope2026-11-14
danger.quip.comIn scope2026-11-14
dani.quip.comIn scope2026-11-14
daniel.quip.comIn scope2026-11-14
www.daniel.quip.comIn scope2026-11-14
danny.quip.comIn scope2026-11-14
dante.quip.comIn scope2026-11-14
danube.quip.comIn scope2026-11-14
dany.quip.comIn scope2026-11-14
daohandongvon.quip.comIn scope2026-11-14
daphne.quip.comIn scope2026-11-14
dar.quip.comIn scope2026-11-14
darius.quip.comIn scope2026-11-14
dark.quip.comIn scope2026-11-14
darkfire.quip.comIn scope2026-11-14
darkknight.quip.comIn scope2026-11-14
darklord.quip.comIn scope2026-11-14
darkman.quip.comIn scope2026-11-14
darkness.quip.comIn scope2026-11-14
darknight.quip.comIn scope2026-11-14
darkorbit.quip.comIn scope2026-11-14
darkside.quip.comIn scope2026-11-14
darkstar.quip.comIn scope2026-11-14
darling.quip.comIn scope2026-11-14
dart.quip.comIn scope2026-11-14
darwin.quip.comIn scope2026-11-14
das.quip.comIn scope2026-11-14
dash.quip.comIn scope2026-11-14
dashboard.quip.comadminIn scope2026-11-14
dat154.quip.comIn scope2026-11-14
data.quip.comIn scope2026-11-14
vtp.data.quip.comIn scope2026-11-14
www.data.quip.comIn scope2026-11-14
data1.quip.comIn scope2026-11-14
data2.quip.comIn scope2026-11-14
data3.quip.comIn scope2026-11-14
database.quip.comdataIn scope2026-11-14
database1.quip.comdataIn scope2026-11-14
database2.quip.comdataIn scope2026-11-14
databases.quip.comIn scope2026-11-14
datacenter.quip.comIn scope2026-11-14
dataorigin.quip.comIn scope2026-11-14
dataservices.quip.comIn scope2026-11-14
datasync.quip.comIn scope2026-11-14
date.quip.comIn scope2026-11-14
www.date.quip.comIn scope2026-11-14
dating.quip.comIn scope2026-11-14
webdisk.dating.quip.comIn scope2026-11-14
www.dating.quip.comIn scope2026-11-14
daugia.quip.comIn scope2026-11-14
daum.quip.comIn scope2026-11-14
dauphin.quip.comIn scope2026-11-14
dav.quip.comIn scope2026-11-14
dave.quip.comIn scope2026-11-14
dave1.quip.comIn scope2026-11-14
david.quip.comIn scope2026-11-14
david-loughnan.quip.comIn scope2026-11-14
www.david.quip.comIn scope2026-11-14
davinci.quip.comIn scope2026-11-14
davis.quip.comIn scope2026-11-14
dawn.quip.comIn scope2026-11-14
day.quip.comIn scope2026-11-14
daybyday.quip.comIn scope2026-11-14
db.quip.comdataIn scope2026-11-14
www.db.quip.comdataIn scope2026-11-14
db0.quip.comIn scope2026-11-14
db01.quip.comIn scope2026-11-14
db02.quip.comIn scope2026-11-14
db1.quip.comIn scope2026-11-14
db2.quip.comIn scope2026-11-14
db3.quip.comIn scope2026-11-14
db4.quip.comIn scope2026-11-14
db5.quip.comIn scope2026-11-14
db6.quip.comIn scope2026-11-14
db8.quip.comIn scope2026-11-14
db9.quip.comIn scope2026-11-14
dba.quip.comIn scope2026-11-14
dbadmin.quip.comIn scope2026-11-14
dbase.quip.comIn scope2026-11-14
dbd.quip.comIn scope2026-11-14
dbs.quip.comIn scope2026-11-14
dbs1.quip.comIn scope2026-11-14
dbserver.quip.comIn scope2026-11-14
dc.quip.comIn scope2026-11-14
www.dc.quip.comIn scope2026-11-14
dc1.quip.comIn scope2026-11-14
dc2.quip.comIn scope2026-11-14
dc3.quip.comIn scope2026-11-14
dc4.quip.comIn scope2026-11-14
dcc.quip.comIn scope2026-11-14
dce.quip.comIn scope2026-11-14
dcm.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