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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
at.reddit.comIn scope2026-11-14
www.at.reddit.comIn scope2026-11-14
ata.reddit.comIn scope2026-11-14
ataman.reddit.comIn scope2026-11-14
atb.reddit.comIn scope2026-11-14
atc.reddit.comIn scope2026-11-14
ateam.reddit.comIn scope2026-11-14
atelier.reddit.comIn scope2026-11-14
atendimento.reddit.comIn scope2026-11-14
atenea.reddit.comIn scope2026-11-14
atest.reddit.comIn scope2026-11-14
atheism.reddit.comIn scope2026-11-14
athena.reddit.comIn scope2026-11-14
athens.reddit.comIn scope2026-11-14
athletics.reddit.comIn scope2026-11-14
athos.reddit.comIn scope2026-11-14
ati.reddit.comIn scope2026-11-14
atkc.reddit.comIn scope2026-11-14
atl.reddit.comIn scope2026-11-14
atlant.reddit.comIn scope2026-11-14
atlanta.reddit.comIn scope2026-11-14
www.atlanta.reddit.comIn scope2026-11-14
atlantahawks.reddit.comIn scope2026-11-14
atlantic.reddit.comIn scope2026-11-14
atlantis.reddit.comIn scope2026-11-14
atlas.reddit.comIn scope2026-11-14
atlretards.reddit.comIn scope2026-11-14
atm.reddit.comIn scope2026-11-14
atmail.reddit.comIn scope2026-11-14
atom.reddit.comIn scope2026-11-14
atomic.reddit.comIn scope2026-11-14
atrium.reddit.comIn scope2026-11-14
atropos.reddit.comIn scope2026-11-14
ats.reddit.comIn scope2026-11-14
att.reddit.comIn scope2026-11-14
attach.reddit.comIn scope2026-11-14
attendance.reddit.comIn scope2026-11-14
au.reddit.comIn scope2026-11-14
aua.reddit.comIn scope2026-11-14
aubreyplaza.reddit.comIn scope2026-11-14
auc.reddit.comIn scope2026-11-14
auction.reddit.comIn scope2026-11-14
www.auction.reddit.comIn scope2026-11-14
auctions.reddit.comIn scope2026-11-14
www.auctions.reddit.comIn scope2026-11-14
audi.reddit.comIn scope2026-11-14
audio.reddit.comIn scope2026-11-14
www.audio.reddit.comIn scope2026-11-14
audit.reddit.comIn scope2026-11-14
audition.reddit.comIn scope2026-11-14
audrey.reddit.comIn scope2026-11-14
audreyhepburn.reddit.comIn scope2026-11-14
august.reddit.comIn scope2026-11-14
auk.reddit.comIn scope2026-11-14
aukcje.reddit.comIn scope2026-11-14
aukro.reddit.comIn scope2026-11-14
aula.reddit.comIn scope2026-11-14
aulavirtual.reddit.comIn scope2026-11-14
aura.reddit.comIn scope2026-11-14
aurelia.reddit.comIn scope2026-11-14
auriga.reddit.comIn scope2026-11-14
aurora.reddit.comIn scope2026-11-14
www.aurora.reddit.comIn scope2026-11-14
aussie.reddit.comIn scope2026-11-14
austin.reddit.comIn scope2026-11-14
australia.reddit.comIn scope2026-11-14
www.australia.reddit.comIn scope2026-11-14
austria.reddit.comIn scope2026-11-14
auth.reddit.comauthIn scope2026-11-14
auth-hack.reddit.comauthIn scope2026-11-14
auth-ns1.reddit.comauthIn scope2026-11-14
radius.auth.reddit.comauthIn scope2026-11-14
auth1.reddit.comauthIn scope2026-11-14
auth2.reddit.comauthIn scope2026-11-14
auth3.reddit.comauthIn scope2026-11-14
author.reddit.comIn scope2026-11-14
www.author.reddit.comIn scope2026-11-14
authors.reddit.comIn scope2026-11-14
auto.reddit.comIn scope2026-11-14
autocad.reddit.comIn scope2026-11-14
autoconfig.reddit.comIn scope2026-11-14
autodiscover.reddit.commailIn scope2026-11-14
autodiscover-redirect.reddit.commailIn scope2026-11-14
automail.reddit.comIn scope2026-11-14
automation.reddit.comIn scope2026-11-14
automotive.reddit.comIn scope2026-11-14
autoplataforma.reddit.comIn scope2026-11-14
autoreply.reddit.comIn scope2026-11-14
autoresponder.reddit.comIn scope2026-11-14
autos.reddit.comIn scope2026-11-14
www.autos.reddit.comIn scope2026-11-14
av.reddit.comIn scope2026-11-14
www.av.reddit.comIn scope2026-11-14
av1.reddit.comIn scope2026-11-14
av8d.reddit.comIn scope2026-11-14
mail.av8d.reddit.commailIn scope2026-11-14
ava.reddit.comIn scope2026-11-14
www.ava.reddit.comIn scope2026-11-14
avalanche.reddit.comIn scope2026-11-14
avalon.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