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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
coronavirusca-2019.reddit.comIn scope2026-11-14
coronavirusca-backending1.reddit.comIn scope2026-11-14
coronavirusca-blog.reddit.comIn scope2026-11-14
coronavirusca-dev.reddit.comdevIn scope2026-11-14
coronavirusca-dns2.reddit.comIn scope2026-11-14
coronavirusca-host.reddit.comIn scope2026-11-14
coronavirusca-mx7.reddit.comIn scope2026-11-14
coronavirusca-ns3.reddit.comIn scope2026-11-14
coronavirusca-owa.reddit.commailIn scope2026-11-14
coronavirusca-pop.reddit.comIn scope2026-11-14
coronavirusca-portal.reddit.comIn scope2026-11-14
coronavirusca-smtp.reddit.commailIn scope2026-11-14
coronavirusca-web.reddit.comIn scope2026-11-14
coronavirusca-webmail.reddit.commailIn scope2026-11-14
app.coronavirusca.reddit.comIn scope2026-11-14
dev.coronavirusca.reddit.comdevIn scope2026-11-14
doc-ns2.coronavirusca.reddit.comIn scope2026-11-14
ftp.coronavirusca.reddit.comdataIn scope2026-11-14
host.coronavirusca.reddit.comIn scope2026-11-14
mail1.coronavirusca.reddit.commailIn scope2026-11-14
mx1.coronavirusca.reddit.comIn scope2026-11-14
ns2.coronavirusca.reddit.comIn scope2026-11-14
remote.coronavirusca.reddit.comvpnIn scope2026-11-14
www.coronavirusca.reddit.comIn scope2026-11-14
coronavirusca1017.reddit.comIn scope2026-11-14
coronavirusca2fout.reddit.comIn scope2026-11-14
coronaviruscaapp.reddit.comIn scope2026-11-14
coronaviruscabbs.reddit.comIn scope2026-11-14
coronaviruscadns2.reddit.comIn scope2026-11-14
coronaviruscahost.reddit.comIn scope2026-11-14
coronaviruscamailin2.reddit.comIn scope2026-11-14
coronaviruscans1.reddit.comIn scope2026-11-14
coronaviruscapop.reddit.comIn scope2026-11-14
coronaviruscapwww.reddit.comIn scope2026-11-14
coronaviruscaqt1.reddit.comIn scope2026-11-14
coronaviruscasupport.reddit.comIn scope2026-11-14
coronaviruscatest.reddit.comIn scope2026-11-14
coronavirusdns1.reddit.comIn scope2026-11-14
coronavirusfos.reddit.comIn scope2026-11-14
coronavirusfos-korea.reddit.comIn scope2026-11-14
coronavirusfosqaing1.reddit.comIn scope2026-11-14
coronavirusmail1.reddit.comIn scope2026-11-14
coronavirusmailin1.reddit.comIn scope2026-11-14
coronavirusmx7.reddit.comIn scope2026-11-14
coronavirusns1.reddit.comIn scope2026-11-14
coronavirusns2.reddit.comIn scope2026-11-14
coronavirusns4.reddit.comIn scope2026-11-14
coronavirusow-03.reddit.comIn scope2026-11-14
coronavirusrecession.reddit.comIn scope2026-11-14
coronavirusrecession-reddit-mx-03.reddit.commailIn scope2026-11-14
coronavirusrecessionlocal1.reddit.comIn scope2026-11-14
coronavirusremote.reddit.comIn scope2026-11-14
coronavirusseduction.reddit.comIn scope2026-11-14
coronavirusserver.reddit.comIn scope2026-11-14
coronavirusvpn.reddit.comIn scope2026-11-14
coronaviruswa.reddit.comIn scope2026-11-14
coronaviruswww.reddit.comIn scope2026-11-14
coronaviruszd.reddit.comIn scope2026-11-14
corp.reddit.cominternalIn scope2026-11-14
mail.corp.reddit.cominternal, mailIn scope2026-11-14
www.corp.reddit.cominternalIn scope2026-11-14
corp2.reddit.cominternalIn scope2026-11-14
corpmail.reddit.comIn scope2026-11-14
corporate.reddit.cominternalIn scope2026-11-14
www.corporate.reddit.cominternalIn scope2026-11-14
correio.reddit.comIn scope2026-11-14
correo.reddit.comIn scope2026-11-14
www.correo.reddit.comIn scope2026-11-14
correoweb.reddit.comIn scope2026-11-14
correu.reddit.comIn scope2026-11-14
corroded.reddit.comIn scope2026-11-14
corvette.reddit.comIn scope2026-11-14
corvus.reddit.comIn scope2026-11-14
cos.reddit.comIn scope2026-11-14
cosanostra.reddit.comIn scope2026-11-14
cosign.reddit.comIn scope2026-11-14
cosme.reddit.comIn scope2026-11-14
cosmetic.reddit.comIn scope2026-11-14
cosmic.reddit.comIn scope2026-11-14
cosmo.reddit.comIn scope2026-11-14
cosmos.reddit.comIn scope2026-11-14
cost.reddit.comIn scope2026-11-14
costa.reddit.comIn scope2026-11-14
costarica.reddit.comIn scope2026-11-14
cottage.reddit.comIn scope2026-11-14
cotton.reddit.comIn scope2026-11-14
cougar.reddit.comIn scope2026-11-14
council.reddit.comIn scope2026-11-14
count.reddit.comIn scope2026-11-14
countdown.reddit.comIn scope2026-11-14
counter.reddit.comIn scope2026-11-14
www.counter.reddit.comIn scope2026-11-14
counters.reddit.comIn scope2026-11-14
counterstrike.reddit.comIn scope2026-11-14
country.reddit.comIn scope2026-11-14
coupang4.reddit.comIn scope2026-11-14
coupon.reddit.comIn scope2026-11-14
www.coupon.reddit.comIn scope2026-11-14
coupons.reddit.comIn scope2026-11-14
courier.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