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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
dcms.quip.comIn scope2026-11-14
dcode.quip.comIn scope2026-11-14
dcp.quip.comIn scope2026-11-14
dcs.quip.comIn scope2026-11-14
dct.quip.comIn scope2026-11-14
dd.quip.comIn scope2026-11-14
www.dd.quip.comIn scope2026-11-14
ddc.quip.comIn scope2026-11-14
ddd.quip.comIn scope2026-11-14
dddd.quip.comIn scope2026-11-14
ddh.quip.comIn scope2026-11-14
ddi.quip.comIn scope2026-11-14
ddl.quip.comIn scope2026-11-14
ddns.quip.comIn scope2026-11-14
ddns1.quip.comIn scope2026-11-14
ddp.quip.comIn scope2026-11-14
dds.quip.comIn scope2026-11-14
de.quip.comIn scope2026-11-14
autoconfig.de.quip.comIn scope2026-11-14
autodiscover.de.quip.commailIn scope2026-11-14
mail.de.quip.commailIn scope2026-11-14
webdisk.de.quip.comIn scope2026-11-14
de1.quip.comIn scope2026-11-14
deai.quip.comIn scope2026-11-14
deal.quip.comIn scope2026-11-14
dealer.quip.comIn scope2026-11-14
www.dealer.quip.comIn scope2026-11-14
dealers.quip.comIn scope2026-11-14
dealornodeal.quip.comIn scope2026-11-14
deals.quip.comIn scope2026-11-14
www.deals.quip.comIn scope2026-11-14
dean.quip.comIn scope2026-11-14
death.quip.comIn scope2026-11-14
deb.quip.comIn scope2026-11-14
debian.quip.comIn scope2026-11-14
deborah.quip.comIn scope2026-11-14
debug.quip.comIn scope2026-11-14
deco.quip.comIn scope2026-11-14
dede.quip.comIn scope2026-11-14
dedi.quip.comIn scope2026-11-14
dedicado.quip.comIn scope2026-11-14
dedicated.quip.comIn scope2026-11-14
deedee.quip.comIn scope2026-11-14
deep.quip.comIn scope2026-11-14
deepak.quip.comIn scope2026-11-14
deer.quip.comIn scope2026-11-14
default.quip.comIn scope2026-11-14
defender.quip.comIn scope2026-11-14
defiant.quip.comIn scope2026-11-14
degconsulting.quip.comIn scope2026-11-14
degreedc.quip.comIn scope2026-11-14
dehverhealth.quip.comIn scope2026-11-14
deimos.quip.comIn scope2026-11-14
del.quip.comIn scope2026-11-14
delhi.quip.comIn scope2026-11-14
deli.quip.comIn scope2026-11-14
delicious.quip.comIn scope2026-11-14
deliver.quip.comIn scope2026-11-14
delivery.quip.comIn scope2026-11-14
www.delivery.quip.comIn scope2026-11-14
dell.quip.comIn scope2026-11-14
delphi.quip.comIn scope2026-11-14
delta.quip.comIn scope2026-11-14
dem.quip.comIn scope2026-11-14
demeter.quip.comIn scope2026-11-14
demo.quip.comtestIn scope2026-11-14
autoconfig.demo.quip.comtestIn scope2026-11-14
autodiscover.demo.quip.commail, testIn scope2026-11-14
ftp.demo.quip.comdata, testIn scope2026-11-14
ipv4.demo.quip.comtestIn scope2026-11-14
m.demo.quip.comtestIn scope2026-11-14
ns.demo.quip.comtestIn scope2026-11-14
webdisk.demo.quip.comtestIn scope2026-11-14
webmail.demo.quip.commail, testIn scope2026-11-14
www.demo.quip.comtestIn scope2026-11-14
demo01.quip.comtestIn scope2026-11-14
demo02.quip.comtestIn scope2026-11-14
demo1.quip.comtestIn scope2026-11-14
www.demo1.quip.comtestIn scope2026-11-14
demo10.quip.comtestIn scope2026-11-14
demo11.quip.comtestIn scope2026-11-14
demo12.quip.comtestIn scope2026-11-14
demo13.quip.comtestIn scope2026-11-14
demo14.quip.comtestIn scope2026-11-14
demo15.quip.comtestIn scope2026-11-14
demo16.quip.comtestIn scope2026-11-14
demo17.quip.comtestIn scope2026-11-14
demo18.quip.comtestIn scope2026-11-14
demo19.quip.comtestIn scope2026-11-14
demo2.quip.comtestIn scope2026-11-14
www.demo2.quip.comtestIn scope2026-11-14
demo3.quip.comtestIn scope2026-11-14
www.demo3.quip.comtestIn scope2026-11-14
demo4.quip.comtestIn scope2026-11-14
demo5.quip.comtestIn scope2026-11-14
demo6.quip.comtestIn scope2026-11-14
demo7.quip.comtestIn scope2026-11-14
demo8.quip.comtestIn scope2026-11-14
demo9.quip.comtestIn scope2026-11-14
democracy.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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