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Nextcloud

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HackerOne
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Assets in scope
94
Disclosed reports
613
Subdomains
1,642

Most upvoted reports613

All reports
Most upvoted reports of Nextcloud
ReportWeaknessDisclosedBountyVotes
Code injection possible with malformed Nextcloud Talk chat commandsAnalysed#851807Command and Code Injection2020-06-02–317
User can delete data in shared folders he's not autorized to accessAnalysed#642515Access Control2020-04-10–173
Access to all files of remote user through shared file#258084Information Disclosure2020-03-01–154
Attacker can obtain write access to any federated share/public link#1170024Authentication2021-06-10$4,000142
Missing ownership check on remote wipe endpoint#819807Insecure Direct Object Reference2020-04-19$500141
Remote Code Execution via Extract App Plugin#546753Command and Code Injection2019-05-30–124
Sensitive Information Disclosure via Back Button Post Logout on https://apps.nextcloud.com/account/#2946927No weakness recorded2025-03-16–113
Mail contact autocomplete bypasses administrator-configured user enumeration restrictions and expose member information outside the intended scope#3617729Information Disclosure2026-09-04$250101
PIN bypass in PassCodeActivity via back button#3625210Authentication2026-06-07$150101
Group restriction bypass via bearer token in user_oidc (SETTING_RESTRICT_LOGIN_TO_GROUPS not enforced in Backend::getCurrentUserId)#3572848Access Control2026-05-21$150100

Subdomains1,642

Root
Scope:Not in the scope
Name suggests
First seen
Text fileClear filters1,613 names
Subdomains of Nextcloud
NameScopeFirst seen
abcvyz.nextcloud.comNot in the scope2026-11-14
academy.nextcloud.comNot in the scope2026-11-14
aio-testing.nextcloud.comtestNot in the scope2026-11-14
amxtestenv.nextcloud.comNot in the scope2026-11-14
cool.amxtestenv.nextcloud.comNot in the scope2026-11-14
push.amxtestenv.nextcloud.comNot in the scope2026-11-14
antitrust.nextcloud.comNot in the scope2026-11-14
api.nextcloud.comapiNot in the scope2026-11-14
auth2.nextcloud.comauthNot in the scope2026-11-14
backportbot.nextcloud.comNot in the scope2026-11-14
backup.nextcloud.comdataNot in the scope2026-11-14
blabla.nextcloud.comNot in the scope2026-11-14
bmi-demo.nextcloud.comtestNot in the scope2026-11-14
backport.bots.nextcloud.comNot in the scope2026-11-14
stalebot.bots.nextcloud.comNot in the scope2026-11-14
ci-assets.nextcloud.comciNot in the scope2026-11-14
click.nextcloud.comNot in the scope2026-11-14
collabora.cloud.nextcloud.comNot in the scope2026-11-14
push.cloud.nextcloud.comNot in the scope2026-11-14
staging.push.cloud.nextcloud.comstagingNot in the scope2026-11-14
staging.cloud.nextcloud.comstagingNot in the scope2026-11-14
collabora.nextcloud.comNot in the scope2026-11-14
collabora-staging.nextcloud.comstagingNot in the scope2026-11-14
collabora-test.nextcloud.comtestNot in the scope2026-11-14
collabora-test2.nextcloud.comtestNot in the scope2026-11-14
staging.collabora.nextcloud.comstagingNot in the scope2026-11-14
conference.nextcloud.comNot in the scope2026-11-14
connectivity.nextcloud.comNot in the scope2026-11-14
customerpush.nextcloud.comNot in the scope2026-11-14
c0001.customerpush.nextcloud.comNot in the scope2026-11-14
c0002.customerpush.nextcloud.comNot in the scope2026-11-14
c0003.customerpush.nextcloud.comNot in the scope2026-11-14
c0004.customerpush.nextcloud.comNot in the scope2026-11-14
c0005.customerpush.nextcloud.comNot in the scope2026-11-14
c0006.customerpush.nextcloud.comNot in the scope2026-11-14
c0007.customerpush.nextcloud.comNot in the scope2026-11-14
demo-push-notifications.nextcloud.comtestNot in the scope2026-11-14
demo1.nextcloud.comtestNot in the scope2026-11-14
demo2.nextcloud.comtestNot in the scope2026-11-14
dev.nextcloud.comdevNot in the scope2026-11-14
doc.nextcloud.comNot in the scope2026-11-14
docs2.nextcloud.comNot in the scope2026-11-14
drone-woker4.nextcloud.comciNot in the scope2026-11-14
drone-worker1.nextcloud.comciNot in the scope2026-11-14
drone-worker2.nextcloud.comciNot in the scope2026-11-14
drone-worker3.nextcloud.comciNot in the scope2026-11-14
drone-worker4.nextcloud.comciNot in the scope2026-11-14
drone-worker5.nextcloud.comciNot in the scope2026-11-14
dsi.nextcloud.comNot in the scope2026-11-14
eaio-testing.nextcloud.comtestNot in the scope2026-11-14
eo.nextcloud.comNot in the scope2026-11-14
filemi.nextcloud.comNot in the scope2026-11-14
gaia-x.nextcloud.comNot in the scope2026-11-14
garm.nextcloud.comNot in the scope2026-11-14
garm1.nextcloud.comNot in the scope2026-11-14
garm2.nextcloud.comNot in the scope2026-11-14
garm3.nextcloud.comNot in the scope2026-11-14
garm4.nextcloud.comNot in the scope2026-11-14
garm5.nextcloud.comNot in the scope2026-11-14
garm6.nextcloud.comNot in the scope2026-11-14
garm7.nextcloud.comNot in the scope2026-11-14
go.nextcloud.comNot in the scope2026-11-14
handbook.nextcloud.comNot in the scope2026-11-14
hpb-server.nextcloud.comNot in the scope2026-11-14
idm.nextcloud.comNot in the scope2026-11-14
ihopenooneeverregistersthissubdomain.nextcloud.comNot in the scope2026-11-14
jank.nextcloud.comNot in the scope2026-11-14
ldap.nextcloud.comNot in the scope2026-11-14
accountwarning.ltd.nextcloud.comNot in the scope2026-11-14
aiosebastian.ltd.nextcloud.comNot in the scope2026-11-14
airtahiti.ltd.nextcloud.comNot in the scope2026-11-14
alexanderm.ltd.nextcloud.comNot in the scope2026-11-14
allied-world.ltd.nextcloud.comNot in the scope2026-11-14
alpes-controles.ltd.nextcloud.comNot in the scope2026-11-14
arulogic.ltd.nextcloud.comNot in the scope2026-11-14
awo-psychiatriezentrum.ltd.nextcloud.comNot in the scope2026-11-14
bastian.ltd.nextcloud.comNot in the scope2026-11-14
bates-white.ltd.nextcloud.comNot in the scope2026-11-14
bauhaus-dessau.ltd.nextcloud.comNot in the scope2026-11-14
bilgin.ltd.nextcloud.comNot in the scope2026-11-14
bitbw.ltd.nextcloud.comNot in the scope2026-11-14
chunimes.ltd.nextcloud.comNot in the scope2026-11-14
cognizant.ltd.nextcloud.comNot in the scope2026-11-14
commarc.ltd.nextcloud.comNot in the scope2026-11-14
concordia.ltd.nextcloud.comNot in the scope2026-11-14
connexia.ltd.nextcloud.comNot in the scope2026-11-14
conocophillips.ltd.nextcloud.comNot in the scope2026-11-14
dacta.ltd.nextcloud.comNot in the scope2026-11-14
dandemutande.ltd.nextcloud.comNot in the scope2026-11-14
dataprotectgroup.ltd.nextcloud.comNot in the scope2026-11-14
demo1.ltd.nextcloud.comtestNot in the scope2026-11-14
demo2.ltd.nextcloud.comtestNot in the scope2026-11-14
demo3.ltd.nextcloud.comtestNot in the scope2026-11-14
design.ltd.nextcloud.comNot in the scope2026-11-14
digi-belgium.ltd.nextcloud.comNot in the scope2026-11-14
direct-ventures.ltd.nextcloud.comNot in the scope2026-11-14
easygcloud.ltd.nextcloud.comNot in the scope2026-11-14
fabien.ltd.nextcloud.comNot in the scope2026-11-14
fgu-aarhus.ltd.nextcloud.comNot in the scope2026-11-14
fit-fraunhofer.ltd.nextcloud.comNot in the scope2026-11-14

23 names are covered by the program's own scope; 0 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 2026-11-14.

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