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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/#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:nextcloud.com
Scope
Name suggests
First seen
Text fileClear filters1,642 names
Subdomains of Nextcloud
NameScopeFirst seen
epfl.ltd1.nextcloud.comNot in the scope2026-11-14
eu-lisa.ltd1.nextcloud.comNot in the scope2026-11-14
faa.ltd1.nextcloud.comNot in the scope2026-11-14
fajardo.ltd1.nextcloud.comNot in the scope2026-11-14
fc-gruppe.ltd1.nextcloud.comNot in the scope2026-11-14
fosogcom.ltd1.nextcloud.comNot in the scope2026-11-14
gadhof.ltd1.nextcloud.comNot in the scope2026-11-14
gbinfrasignal.ltd1.nextcloud.comNot in the scope2026-11-14
gemeentedenbosch.ltd1.nextcloud.comNot in the scope2026-11-14
geosn.ltd1.nextcloud.comNot in the scope2026-11-14
gitex.ltd1.nextcloud.comNot in the scope2026-11-14
gkv-spitzenverband.ltd1.nextcloud.comNot in the scope2026-11-14
go.ltd1.nextcloud.comNot in the scope2026-11-14
goldsteig.ltd1.nextcloud.comNot in the scope2026-11-14
grip.ltd1.nextcloud.comNot in the scope2026-11-14
grit.ltd1.nextcloud.comNot in the scope2026-11-14
hannover-re.ltd1.nextcloud.comNot in the scope2026-11-14
hardwework.ltd1.nextcloud.comNot in the scope2026-11-14
highwayconcessions.ltd1.nextcloud.comNot in the scope2026-11-14
hof-university.ltd1.nextcloud.comNot in the scope2026-11-14
honestis.ltd1.nextcloud.comNot in the scope2026-11-14
hpslyss.ltd1.nextcloud.comNot in the scope2026-11-14
huaweicloud.ltd1.nextcloud.comNot in the scope2026-11-14
hvidovrekommune.ltd1.nextcloud.comNot in the scope2026-11-14
hwkluebeck.ltd1.nextcloud.comNot in the scope2026-11-14
hyconsultinggroup.ltd1.nextcloud.comNot in the scope2026-11-14
icc.ltd1.nextcloud.comNot in the scope2026-11-14
icts.ltd1.nextcloud.comNot in the scope2026-11-14
citrabonang.co.id.ltd1.nextcloud.comNot in the scope2026-11-14
imo.ltd1.nextcloud.comNot in the scope2026-11-14
indiget.ltd1.nextcloud.comNot in the scope2026-11-14
infodraft.ltd1.nextcloud.comNot in the scope2026-11-14
insys.ltd1.nextcloud.comNot in the scope2026-11-14
inwebadriatico.ltd1.nextcloud.comNot in the scope2026-11-14
ipi.ltd1.nextcloud.comNot in the scope2026-11-14
irise.ltd1.nextcloud.comNot in the scope2026-11-14
irworldwide.ltd1.nextcloud.comNot in the scope2026-11-14
joas.ltd1.nextcloud.comNot in the scope2026-11-14
julius-kuehn.ltd1.nextcloud.comNot in the scope2026-11-14
jytc.ltd1.nextcloud.comNot in the scope2026-11-14
kantonthurgau.ltd1.nextcloud.comNot in the scope2026-11-14
katotechzambiacom.ltd1.nextcloud.comNot in the scope2026-11-14
keystone-digital.ltd1.nextcloud.comNot in the scope2026-11-14
kier.ltd1.nextcloud.comNot in the scope2026-11-14
kirienergy.ltd1.nextcloud.comNot in the scope2026-11-14
kisslabs.ltd1.nextcloud.comNot in the scope2026-11-14
kloud.ltd1.nextcloud.comNot in the scope2026-11-14
lak.ltd1.nextcloud.comNot in the scope2026-11-14
lakehead.ltd1.nextcloud.comNot in the scope2026-11-14
landkreis-heidekreis.ltd1.nextcloud.comNot in the scope2026-11-14
lcsi.ltd1.nextcloud.comNot in the scope2026-11-14
linnovate.ltd1.nextcloud.comNot in the scope2026-11-14
loerrach.ltd1.nextcloud.comNot in the scope2026-11-14
lpstech.ltd1.nextcloud.comNot in the scope2026-11-14
lsb-nrw.ltd1.nextcloud.comNot in the scope2026-11-14
lueneburg.ltd1.nextcloud.comNot in the scope2026-11-14
lvmh.ltd1.nextcloud.comNot in the scope2026-11-14
manafa.ltd1.nextcloud.comNot in the scope2026-11-14
masa.ltd1.nextcloud.comNot in the scope2026-11-14
mass50501.ltd1.nextcloud.comNot in the scope2026-11-14
mbbank.ltd1.nextcloud.comNot in the scope2026-11-14
mbod-05.ltd1.nextcloud.comNot in the scope2026-11-14
mbod-08.ltd1.nextcloud.comNot in the scope2026-11-14
mbod-15.ltd1.nextcloud.comNot in the scope2026-11-14
mbod-19.ltd1.nextcloud.comNot in the scope2026-11-14
mbod-23.ltd1.nextcloud.comNot in the scope2026-11-14
mclsystemscom.ltd1.nextcloud.comNot in the scope2026-11-14
mekongnet.ltd1.nextcloud.comNot in the scope2026-11-14
mgenesis.ltd1.nextcloud.comNot in the scope2026-11-14
mkk.ltd1.nextcloud.comNot in the scope2026-11-14
mml.ltd1.nextcloud.comNot in the scope2026-11-14
mmu.ltd1.nextcloud.comNot in the scope2026-11-14
modcloud.ltd1.nextcloud.comNot in the scope2026-11-14
modon.ltd1.nextcloud.comNot in the scope2026-11-14
moe.ltd1.nextcloud.comNot in the scope2026-11-14
moldarentechnologiescoza.ltd1.nextcloud.comNot in the scope2026-11-14
mraa.ltd1.nextcloud.comNot in the scope2026-11-14
muehlbauer.ltd1.nextcloud.comNot in the scope2026-11-14
jm.mv-regierung.ltd1.nextcloud.comNot in the scope2026-11-14
mzh-oo.ltd1.nextcloud.comNot in the scope2026-11-14
nahil.ltd1.nextcloud.comNot in the scope2026-11-14
nc29.ltd1.nextcloud.comNot in the scope2026-11-14
nc35.ltd1.nextcloud.comNot in the scope2026-11-14
flocert.net.ltd1.nextcloud.comNot in the scope2026-11-14
neuulm.ltd1.nextcloud.comNot in the scope2026-11-14
new2.ltd1.nextcloud.comNot in the scope2026-11-14
ngo-se.ltd1.nextcloud.comNot in the scope2026-11-14
visitar.nl.ltd1.nextcloud.comNot in the scope2026-11-14
nlbl.ltd1.nextcloud.comNot in the scope2026-11-14
noitechpark.ltd1.nextcloud.comNot in the scope2026-11-14
nrd.ltd1.nextcloud.comNot in the scope2026-11-14
oberbergkliniken.ltd1.nextcloud.comNot in the scope2026-11-14
ocpgroup.ltd1.nextcloud.comNot in the scope2026-11-14
odiss.ltd1.nextcloud.comNot in the scope2026-11-14
omanairports.ltd1.nextcloud.comNot in the scope2026-11-14
ontec.ltd1.nextcloud.comNot in the scope2026-11-14
ontron.ltd1.nextcloud.comNot in the scope2026-11-14
opendesk-whiteboard.ltd1.nextcloud.comNot in the scope2026-11-14
openline-demo.ltd1.nextcloud.comtestNot in the scope2026-11-14
optigrise.ltd1.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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