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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
eksh.ltd2.nextcloud.comNot in the scope2026-11-14
elisa.ltd2.nextcloud.comNot in the scope2026-11-14
emma.ltd2.nextcloud.comNot in the scope2026-11-14
ensign.ltd2.nextcloud.comNot in the scope2026-11-14
entrust.ltd2.nextcloud.comNot in the scope2026-11-14
epfl.ltd2.nextcloud.comNot in the scope2026-11-14
erlangen-fuerth.ltd2.nextcloud.comNot in the scope2026-11-14
eu-lisa-2.ltd2.nextcloud.comNot in the scope2026-11-14
eureka.ltd2.nextcloud.comNot in the scope2026-11-14
euroatlas.ltd2.nextcloud.comNot in the scope2026-11-14
fachverbandfurkunsttherapie.ltd2.nextcloud.comNot in the scope2026-11-14
fahrnerbauunternehmen.ltd2.nextcloud.comNot in the scope2026-11-14
faldetasad.ltd2.nextcloud.comNot in the scope2026-11-14
familymy.ltd2.nextcloud.comNot in the scope2026-11-14
fantasiasmiguel.ltd2.nextcloud.comNot in the scope2026-11-14
firenze.ltd2.nextcloud.comNot in the scope2026-11-14
forms.ltd2.nextcloud.comNot in the scope2026-11-14
freseniustestzugang.ltd2.nextcloud.comNot in the scope2026-11-14
gabor.ltd2.nextcloud.comNot in the scope2026-11-14
gantefuehrer.ltd2.nextcloud.comNot in the scope2026-11-14
geb.ltd2.nextcloud.comNot in the scope2026-11-14
gei.ltd2.nextcloud.comNot in the scope2026-11-14
georg-speyer-haus.ltd2.nextcloud.comNot in the scope2026-11-14
geosn.ltd2.nextcloud.comNot in the scope2026-11-14
getnetset.ltd2.nextcloud.comNot in the scope2026-11-14
gluchcommunications.ltd2.nextcloud.comNot in the scope2026-11-14
goeree-overflakkee.ltd2.nextcloud.comNot in the scope2026-11-14
goeree-overflakkee-2.ltd2.nextcloud.comNot in the scope2026-11-14
goereeoverflakkee.ltd2.nextcloud.comNot in the scope2026-11-14
grande-synthe.ltd2.nextcloud.comNot in the scope2026-11-14
greencompute.ltd2.nextcloud.comNot in the scope2026-11-14
gruen-software-group.ltd2.nextcloud.comNot in the scope2026-11-14
guardiancomputer.ltd2.nextcloud.comNot in the scope2026-11-14
gulfedge.ltd2.nextcloud.comNot in the scope2026-11-14
hcl.ltd2.nextcloud.comNot in the scope2026-11-14
heliosgesundheit.ltd2.nextcloud.comNot in the scope2026-11-14
hexagon.ltd2.nextcloud.comNot in the scope2026-11-14
hochschule.ltd2.nextcloud.comNot in the scope2026-11-14
holdinova.ltd2.nextcloud.comNot in the scope2026-11-14
horizlawae.ltd2.nextcloud.comNot in the scope2026-11-14
hospitalrehabilitationcentrefordisabledchildren.ltd2.nextcloud.comNot in the scope2026-11-14
htpgmbh.ltd2.nextcloud.comNot in the scope2026-11-14
htx.ltd2.nextcloud.comNot in the scope2026-11-14
huaweicloud.ltd2.nextcloud.comNot in the scope2026-11-14
humaniscapital.ltd2.nextcloud.comNot in the scope2026-11-14
hz-uni.ltd2.nextcloud.comNot in the scope2026-11-14
i2k2.ltd2.nextcloud.comNot in the scope2026-11-14
ibos.ltd2.nextcloud.comNot in the scope2026-11-14
ibrahim.ltd2.nextcloud.comNot in the scope2026-11-14
ida-test.ltd2.nextcloud.comtestNot in the scope2026-11-14
igpgov.ltd2.nextcloud.comNot in the scope2026-11-14
ina.ltd2.nextcloud.comNot in the scope2026-11-14
indisol.ltd2.nextcloud.comNot in the scope2026-11-14
inselverwaltung-sylt.ltd2.nextcloud.comNot in the scope2026-11-14
insta360.ltd2.nextcloud.comNot in the scope2026-11-14
integrance.ltd2.nextcloud.comNot in the scope2026-11-14
ipaustria.ltd2.nextcloud.comNot in the scope2026-11-14
irri.ltd2.nextcloud.comNot in the scope2026-11-14
istrotech.ltd2.nextcloud.comNot in the scope2026-11-14
isulacorsica.ltd2.nextcloud.comNot in the scope2026-11-14
nitka.it.ltd2.nextcloud.comNot in the scope2026-11-14
itcom.ltd2.nextcloud.comNot in the scope2026-11-14
ixiincom.ltd2.nextcloud.comNot in the scope2026-11-14
jacco.ltd2.nextcloud.comNot in the scope2026-11-14
joao.ltd2.nextcloud.comNot in the scope2026-11-14
johan.ltd2.nextcloud.comNot in the scope2026-11-14
johnsoncity.ltd2.nextcloud.comNot in the scope2026-11-14
jongeneel.ltd2.nextcloud.comNot in the scope2026-11-14
josef-raabe-verlag.ltd2.nextcloud.comNot in the scope2026-11-14
js-soft.ltd2.nextcloud.comNot in the scope2026-11-14
justae.ltd2.nextcloud.comNot in the scope2026-11-14
justea.ltd2.nextcloud.comNot in the scope2026-11-14
kaigruppe.ltd2.nextcloud.comNot in the scope2026-11-14
kanton-basel.ltd2.nextcloud.comNot in the scope2026-11-14
kantonbasel.ltd2.nextcloud.comNot in the scope2026-11-14
kenworthdeleste.ltd2.nextcloud.comNot in the scope2026-11-14
ketek.ltd2.nextcloud.comNot in the scope2026-11-14
kfnl.ltd2.nextcloud.comNot in the scope2026-11-14
kibag.ltd2.nextcloud.comNot in the scope2026-11-14
kingsauduniversity.ltd2.nextcloud.comNot in the scope2026-11-14
kisslabs.ltd2.nextcloud.comNot in the scope2026-11-14
kkv.ltd2.nextcloud.comNot in the scope2026-11-14
kreisbaugruppe.ltd2.nextcloud.comNot in the scope2026-11-14
kuleuven.ltd2.nextcloud.comNot in the scope2026-11-14
kulicke-soffa.ltd2.nextcloud.comNot in the scope2026-11-14
landkreispotsdammittelmark.ltd2.nextcloud.comNot in the scope2026-11-14
langenselbold.ltd2.nextcloud.comNot in the scope2026-11-14
lewis-eady.ltd2.nextcloud.comNot in the scope2026-11-14
lexant.ltd2.nextcloud.comNot in the scope2026-11-14
liberty-pk.ltd2.nextcloud.comNot in the scope2026-11-14
lifeinclusion.ltd2.nextcloud.comNot in the scope2026-11-14
limitlessgrow.ltd2.nextcloud.comNot in the scope2026-11-14
lksnext.ltd2.nextcloud.comNot in the scope2026-11-14
lomar-shipping.ltd2.nextcloud.comNot in the scope2026-11-14
lu.ltd2.nextcloud.comNot in the scope2026-11-14
lyra.ltd2.nextcloud.comNot in the scope2026-11-14
m-net.ltd2.nextcloud.comNot in the scope2026-11-14
maasi.ltd2.nextcloud.comNot in the scope2026-11-14
maerkischer-kreis.ltd2.nextcloud.comNot in the scope2026-11-14
maigov.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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