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Bug bounty program

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Nextcloud

Open on HackerOneAtlas
Platform
HackerOne
Bounties
Pays
Assets in scope
94
Disclosed reports
613
Subdomains
1,642
Vendor on CyberSIXT
Nextcloud (399 CVEs, 0 exploited)

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 fileAnalysed#258084Information Disclosure2020-03-01–154
Attacker can obtain write access to any federated share/public linkAnalysed#1170024Authentication2021-06-10$4,000142
Missing ownership check on remote wipe endpointAnalysed#819807Insecure Direct Object Reference2020-04-19$500141
Remote Code Execution via Extract App PluginAnalysed#546753Command and Code Injection2019-05-30–124
Sensitive Information Disclosure via Back Button Post Logout on https://apps.nextcloud.com/account/Analysed#2946927No weakness recorded2025-03-16–113
Mail contact autocomplete bypasses administrator-configured user enumeration restrictions and expose member information outside the intended scopeAnalysed#3617729Information Disclosure2026-09-04$250101
PIN bypass in PassCodeActivity via back buttonAnalysed#3625210Authentication2026-06-07$150101
Group restriction bypass via bearer token in user_oidc (SETTING_RESTRICT_LOGIN_TO_GROUPS not enforced in Backend::getCurrentUserId)Analysed#3572848Access Control2026-05-21$150100

Subdomains1,642

Root:nextcloud.com
Scope
Name suggests
First seen
Text fileClear filters1,642 names
Subdomains of Nextcloud
NameScopeFirst seen
4finance.ltd2.nextcloud.comNot in the scope2026-11-14
a-little-testi-test.ltd2.nextcloud.comtestNot in the scope2026-11-14
a-m-f.ltd2.nextcloud.comNot in the scope2026-11-14
accenture-spain.ltd2.nextcloud.comNot in the scope2026-11-14
acmtechnologies.ltd2.nextcloud.comNot in the scope2026-11-14
acsspa.ltd2.nextcloud.comNot in the scope2026-11-14
adientpather.ltd2.nextcloud.comNot in the scope2026-11-14
airport.ltd2.nextcloud.comNot in the scope2026-11-14
ais-thailand.ltd2.nextcloud.comNot in the scope2026-11-14
aiscorp.ltd2.nextcloud.comNot in the scope2026-11-14
alexanderm.ltd2.nextcloud.comNot in the scope2026-11-14
algemene-rekenkamer.ltd2.nextcloud.comNot in the scope2026-11-14
allinbrowser.ltd2.nextcloud.comNot in the scope2026-11-14
altera-hausverwaltung.ltd2.nextcloud.comNot in the scope2026-11-14
amacaerospace.ltd2.nextcloud.comNot in the scope2026-11-14
amf.ltd2.nextcloud.comNot in the scope2026-11-14
apeldoorn.ltd2.nextcloud.comNot in the scope2026-11-14
ariane.ltd2.nextcloud.comNot in the scope2026-11-14
arquus.ltd2.nextcloud.comNot in the scope2026-11-14
asnr.ltd2.nextcloud.comNot in the scope2026-11-14
astramicrowave.ltd2.nextcloud.comNot in the scope2026-11-14
augusteint.ltd2.nextcloud.comNot in the scope2026-11-14
axians.ltd2.nextcloud.comNot in the scope2026-11-14
azercell.ltd2.nextcloud.comNot in the scope2026-11-14
azvsudholstein.ltd2.nextcloud.comNot in the scope2026-11-14
barmer.ltd2.nextcloud.comNot in the scope2026-11-14
bca.ltd2.nextcloud.comNot in the scope2026-11-14
bde.ltd2.nextcloud.comNot in the scope2026-11-14
bechtlerottenburg.ltd2.nextcloud.comNot in the scope2026-11-14
benz-walter.ltd2.nextcloud.comNot in the scope2026-11-14
berkeleygroup.ltd2.nextcloud.comNot in the scope2026-11-14
bertelsmann.ltd2.nextcloud.comNot in the scope2026-11-14
bexio.ltd2.nextcloud.comNot in the scope2026-11-14
bexio-ocs.ltd2.nextcloud.comNot in the scope2026-11-14
bilqis.ltd2.nextcloud.comNot in the scope2026-11-14
bis.ltd2.nextcloud.comNot in the scope2026-11-14
bitbw.ltd2.nextcloud.comNot in the scope2026-11-14
bmj.ltd2.nextcloud.comNot in the scope2026-11-14
brass-gruppe.ltd2.nextcloud.comNot in the scope2026-11-14
breteuil.ltd2.nextcloud.comNot in the scope2026-11-14
bridgeport.ltd2.nextcloud.comNot in the scope2026-11-14
bt.ltd2.nextcloud.comNot in the scope2026-11-14
bundesdruckerei.ltd2.nextcloud.comNot in the scope2026-11-14
businessindie.ltd2.nextcloud.comNot in the scope2026-11-14
buza.ltd2.nextcloud.comNot in the scope2026-11-14
c4ats.ltd2.nextcloud.comNot in the scope2026-11-14
c4atstest.ltd2.nextcloud.comNot in the scope2026-11-14
capitalonecom.ltd2.nextcloud.comNot in the scope2026-11-14
capitalsoftware.ltd2.nextcloud.comNot in the scope2026-11-14
cdac.ltd2.nextcloud.comNot in the scope2026-11-14
cegeka.ltd2.nextcloud.comNot in the scope2026-11-14
centitech.ltd2.nextcloud.comNot in the scope2026-11-14
charite.ltd2.nextcloud.comNot in the scope2026-11-14
chester.ltd2.nextcloud.comNot in the scope2026-11-14
ciimaruppt.ltd2.nextcloud.comNot in the scope2026-11-14
cineca.ltd2.nextcloud.comNot in the scope2026-11-14
cirkels.ltd2.nextcloud.comNot in the scope2026-11-14
cisco.ltd2.nextcloud.comNot in the scope2026-11-14
cityofhamilton.ltd2.nextcloud.comNot in the scope2026-11-14
clarity.ltd2.nextcloud.comNot in the scope2026-11-14
clientcert.ltd2.nextcloud.comNot in the scope2026-11-14
cloud365.ltd2.nextcloud.comNot in the scope2026-11-14
cm.ltd2.nextcloud.comNot in the scope2026-11-14
servintek.com.ltd2.nextcloud.comNot in the scope2026-11-14
comline.ltd2.nextcloud.comNot in the scope2026-11-14
commissariodigoverno.ltd2.nextcloud.comNot in the scope2026-11-14
connactonline.ltd2.nextcloud.comNot in the scope2026-11-14
control-home.ltd2.nextcloud.comNot in the scope2026-11-14
copernicuslac.ltd2.nextcloud.comNot in the scope2026-11-14
crea.ltd2.nextcloud.comNot in the scope2026-11-14
credo-semiconductor.ltd2.nextcloud.comNot in the scope2026-11-14
csbp.ltd2.nextcloud.comNot in the scope2026-11-14
css-tz.ltd2.nextcloud.comNot in the scope2026-11-14
ctrd2.ltd2.nextcloud.comNot in the scope2026-11-14
ctrd3.ltd2.nextcloud.comNot in the scope2026-11-14
cyprien.ltd2.nextcloud.comNot in the scope2026-11-14
daily.ltd2.nextcloud.comNot in the scope2026-11-14
limitlessgrow.de.ltd2.nextcloud.comNot in the scope2026-11-14
demo-mist.ltd2.nextcloud.comtestNot in the scope2026-11-14
destek.ltd2.nextcloud.comNot in the scope2026-11-14
dielinke.ltd2.nextcloud.comNot in the scope2026-11-14
digitalguru.ltd2.nextcloud.comNot in the scope2026-11-14
dinterim.ltd2.nextcloud.comNot in the scope2026-11-14
docker1.ltd2.nextcloud.comtoolsNot in the scope2026-11-14
doppelmayr.ltd2.nextcloud.comNot in the scope2026-11-14
draegerwerk.ltd2.nextcloud.comNot in the scope2026-11-14
draisgms.ltd2.nextcloud.comNot in the scope2026-11-14
driebit.ltd2.nextcloud.comNot in the scope2026-11-14
drk-rlp.ltd2.nextcloud.comNot in the scope2026-11-14
druzinasi.ltd2.nextcloud.comNot in the scope2026-11-14
dynacomtm.ltd2.nextcloud.comNot in the scope2026-11-14
dynaflow.ltd2.nextcloud.comNot in the scope2026-11-14
e-secure.ltd2.nextcloud.comNot in the scope2026-11-14
ecit.ltd2.nextcloud.comNot in the scope2026-11-14
eco-consult.ltd2.nextcloud.comNot in the scope2026-11-14
ecoconsulting.ltd2.nextcloud.comNot in the scope2026-11-14
ecotel.ltd2.nextcloud.comNot in the scope2026-11-14
educamadrid.ltd2.nextcloud.comNot in the scope2026-11-14
egedalkommune.ltd2.nextcloud.comNot in the scope2026-11-14
egov.ltd2.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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