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Bug bounty program

RE

Reddit

Open on HackerOneAtlas
Platform
HackerOne
Bounties
Pays
Assets in scope
27
Disclosed reports
72
Subdomains
23,159
Vendor on CyberSIXT
Reddit (1 CVE, 0 exploited)

Most upvoted reports72

All reports
Most upvoted reports of Reddit
ReportWeaknessDisclosedBountyVotes
One-click account hijack for anyone using Apple sign-in with Reddit, due to response-type switch + leaking href to XSS on www.redditmedia.comAnalysed#1567186Access Control2022-08-02–509
[accounts.reddit.com] Redirect parameter allows for XSSAnalysed#1962645Cross-site Scripting2023-05-18$5,000394
Blind SSRF to internal services in matrix preview_link APIAnalysed#1960765Server-Side Request Forgery2023-04-26$6,000344
Exposed proxy allows to access internal reddit domainsAnalysed#2967634Access Control2025-02-24$7,500296
RichText parser vulnerability in scheduled posts allows XSSAnalysed#1930763Cross-site Scripting2023-04-20$5,000280
Deleting all DMs on RedditGifts.comAnalysed#1213237Insecure Direct Object Reference2021-10-21$5,000267
Infromation Disclosure To Use of Hard-coded Cryptographic Key#2353237Cryptography2024-02-06–238
XSS via Mod Log Removed PostsAnalysed#1504410Cross-site Scripting2022-03-10–218
IDOR allows an attacker to modify the links of any userAnalysed#1661113Insecure Direct Object Reference2022-09-30–208
Able to bypass email verification and change email to any other user emailAnalysed#1551176Access Control2022-05-06$5,000200

Subdomains23,159

Root
Scope
Name suggests
First seen
Text file23,159 names
Subdomains of Reddit
NameScopeFirst seen
apartment.reddit.comIn scope2026-11-14
apc.reddit.comIn scope2026-11-14
apc1.reddit.comIn scope2026-11-14
apc2.reddit.comIn scope2026-11-14
apc4.reddit.comIn scope2026-11-14
ape.reddit.comIn scope2026-11-14
apex.reddit.comIn scope2026-11-14
aphrodite.reddit.comIn scope2026-11-14
api.reddit.comapiIn scope2026-11-14
api-coronavirus.reddit.comapiIn scope2026-11-14
api-coronavirusca.reddit.comapiIn scope2026-11-14
api-dev.reddit.comapi, devIn scope2026-11-14
api-test.reddit.comapi, testIn scope2026-11-14
autoconfig.api.reddit.comapiIn scope2026-11-14
autodiscover.api.reddit.comapi, mailIn scope2026-11-14
covid19.api.reddit.comapiIn scope2026-11-14
com.facebook.api.reddit.comapiIn scope2026-11-14
org.apache.streams.facebook.api.reddit.comapiIn scope2026-11-14
int.api.reddit.comapiIn scope2026-11-14
local.api.reddit.comapi, devIn scope2026-11-14
webdisk.api.reddit.comapiIn scope2026-11-14
www.api.reddit.comapiIn scope2026-11-14
api1.reddit.comapiIn scope2026-11-14
api2.reddit.comapiIn scope2026-11-14
api3.reddit.comapiIn scope2026-11-14
apidev.reddit.comIn scope2026-11-14
apis.reddit.comapiIn scope2026-11-14
apitest.reddit.comIn scope2026-11-14
apk.reddit.comIn scope2026-11-14
apl.reddit.comIn scope2026-11-14
aplicaciones.reddit.comIn scope2026-11-14
aplicativos.reddit.comIn scope2026-11-14
aplikasi.reddit.comIn scope2026-11-14
aplus.reddit.comIn scope2026-11-14
apollo.reddit.comIn scope2026-11-14
apollo18.reddit.comIn scope2026-11-14
apollo2.reddit.comIn scope2026-11-14
apollon.reddit.comIn scope2026-11-14
app.reddit.comIn scope2026-11-14
app-coronavirus.reddit.comIn scope2026-11-14
app-girlsuncovered.reddit.comIn scope2026-11-14
autoconfig.app.reddit.comIn scope2026-11-14
autodiscover.app.reddit.commailIn scope2026-11-14
covid19.app.reddit.comIn scope2026-11-14
girlsuncovered.app.reddit.comIn scope2026-11-14
webdisk.app.reddit.comIn scope2026-11-14
www.app.reddit.comIn scope2026-11-14
app1.reddit.comIn scope2026-11-14
app2.reddit.comIn scope2026-11-14
app3.reddit.comIn scope2026-11-14
app4.reddit.comIn scope2026-11-14
app5.reddit.comIn scope2026-11-14
app6.reddit.comIn scope2026-11-14
app7.reddit.comIn scope2026-11-14
app8.reddit.comIn scope2026-11-14
app9.reddit.comIn scope2026-11-14
appcgi.reddit.comIn scope2026-11-14
appcovid19.reddit.comIn scope2026-11-14
appdev.reddit.comIn scope2026-11-14
appel.reddit.comIn scope2026-11-14
apple.reddit.comIn scope2026-11-14
verify.apple.reddit.comIn scope2026-11-14
www.apple.reddit.comIn scope2026-11-14
appli.reddit.comIn scope2026-11-14
application.reddit.comIn scope2026-11-14
applications.reddit.comIn scope2026-11-14
apply.reddit.comIn scope2026-11-14
approval.reddit.comIn scope2026-11-14
apps.reddit.comIn scope2026-11-14
webdisk.apps.reddit.comIn scope2026-11-14
www.apps.reddit.comIn scope2026-11-14
apps1.reddit.comIn scope2026-11-14
apps2.reddit.comIn scope2026-11-14
apps3.reddit.comIn scope2026-11-14
appstate.reddit.comIn scope2026-11-14
appstore.reddit.comIn scope2026-11-14
apptest.reddit.comIn scope2026-11-14
apricot.reddit.comIn scope2026-11-14
april.reddit.comIn scope2026-11-14
aprisostg.reddit.comIn scope2026-11-14
aproxy.reddit.comIn scope2026-11-14
aps.reddit.comIn scope2026-11-14
apt.reddit.comIn scope2026-11-14
apteka.reddit.comIn scope2026-11-14
apu.reddit.comIn scope2026-11-14
apunts2.reddit.comIn scope2026-11-14
apus.reddit.comIn scope2026-11-14
aq.reddit.comIn scope2026-11-14
aqua.reddit.comIn scope2026-11-14
aquamarine.reddit.comIn scope2026-11-14
aquarium.reddit.comIn scope2026-11-14
aquarius.reddit.comIn scope2026-11-14
aquila.reddit.comIn scope2026-11-14
ar.reddit.comIn scope2026-11-14
www.ar.reddit.comIn scope2026-11-14
ar15.reddit.comIn scope2026-11-14
ara.reddit.comIn scope2026-11-14
arab.reddit.comIn scope2026-11-14
arabic.reddit.comIn scope2026-11-14
www.arabic.reddit.comIn scope2026-11-14

23,064 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 2026-11-15.

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Updated