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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
burundi.reddit.comIn scope2026-11-14
burundicoronavirusca.reddit.comIn scope2026-11-14
bus.reddit.comIn scope2026-11-14
buscador.reddit.comIn scope2026-11-14
business.reddit.comIn scope2026-11-14
autoconfig.business.reddit.comIn scope2026-11-14
autodiscover.business.reddit.commailIn scope2026-11-14
webdisk.business.reddit.comIn scope2026-11-14
www.business.reddit.comIn scope2026-11-14
butler.reddit.comIn scope2026-11-14
butterfly.reddit.comIn scope2026-11-14
butters.reddit.comIn scope2026-11-14
buttons.reddit.comIn scope2026-11-14
buu.reddit.comIn scope2026-11-14
buy.reddit.comIn scope2026-11-14
buzz.reddit.comIn scope2026-11-14
www.buzz.reddit.comIn scope2026-11-14
bv.reddit.comIn scope2026-11-14
bw.reddit.comIn scope2026-11-14
bwc.reddit.comIn scope2026-11-14
bx.reddit.comIn scope2026-11-14
by.reddit.comIn scope2026-11-14
made.by.reddit.comIn scope2026-11-14
www.by.reddit.comIn scope2026-11-14
bydgoszcz.reddit.comIn scope2026-11-14
byron.reddit.comIn scope2026-11-14
bysj.reddit.comIn scope2026-11-14
byte.reddit.comIn scope2026-11-14
byu.reddit.comIn scope2026-11-14
bz.reddit.comIn scope2026-11-14
c.reddit.comIn scope2026-11-14
www.c.reddit.comIn scope2026-11-14
c0.reddit.comIn scope2026-11-14
c1.reddit.comIn scope2026-11-14
c10.reddit.comIn scope2026-11-14
c11.reddit.comIn scope2026-11-14
c12.reddit.comIn scope2026-11-14
c13.reddit.comIn scope2026-11-14
c2.reddit.comIn scope2026-11-14
c21.reddit.comIn scope2026-11-14
c2c.reddit.comIn scope2026-11-14
c3.reddit.comIn scope2026-11-14
c3po.reddit.comIn scope2026-11-14
c4.reddit.comIn scope2026-11-14
c4anvn3.reddit.comIn scope2026-11-14
c5.reddit.comIn scope2026-11-14
c6.reddit.comIn scope2026-11-14
c64.reddit.comIn scope2026-11-14
c7.reddit.comIn scope2026-11-14
c8.reddit.comIn scope2026-11-14
c9.reddit.comIn scope2026-11-14
ca.reddit.comIn scope2026-11-14
www.ca.reddit.comIn scope2026-11-14
cab.reddit.comIn scope2026-11-14
cabinet.reddit.comIn scope2026-11-14
www.cabinet.reddit.comIn scope2026-11-14
cable.reddit.comIn scope2026-11-14
cac.reddit.comIn scope2026-11-14
caca.reddit.comIn scope2026-11-14
cache.reddit.comIn scope2026-11-14
cache1.reddit.comIn scope2026-11-14
cache2.reddit.comIn scope2026-11-14
cache3.reddit.comIn scope2026-11-14
cacti.reddit.comIn scope2026-11-14
cacti1.reddit.comIn scope2026-11-14
cactus.reddit.comIn scope2026-11-14
cad.reddit.comIn scope2026-11-14
caddirt.reddit.comIn scope2026-11-14
cadillac.reddit.comIn scope2026-11-14
cae.reddit.comIn scope2026-11-14
caesar.reddit.comIn scope2026-11-14
cafe.reddit.comIn scope2026-11-14
cag.reddit.comIn scope2026-11-14
cagedollar.reddit.comIn scope2026-11-14
cai.reddit.comIn scope2026-11-14
cairo.reddit.comIn scope2026-11-14
cake.reddit.comIn scope2026-11-14
cakes.reddit.comIn scope2026-11-14
cal.reddit.comIn scope2026-11-14
calc.reddit.comIn scope2026-11-14
calcium.reddit.comIn scope2026-11-14
calculus.reddit.comIn scope2026-11-14
caldav.reddit.comIn scope2026-11-14
caldera.reddit.comIn scope2026-11-14
caldonia.reddit.comIn scope2026-11-14
calendar.reddit.comIn scope2026-11-14
www.calendar.reddit.comIn scope2026-11-14
calendario.reddit.comIn scope2026-11-14
calgary.reddit.comIn scope2026-11-14
calgaryflames.reddit.comIn scope2026-11-14
california.reddit.comIn scope2026-11-14
www.california.reddit.comIn scope2026-11-14
calipso.reddit.comIn scope2026-11-14
call.reddit.comIn scope2026-11-14
callback.reddit.comIn scope2026-11-14
callcenter.reddit.comIn scope2026-11-14
calligraphy.reddit.comIn scope2026-11-14
calliope.reddit.comIn scope2026-11-14
callisto.reddit.comIn scope2026-11-14
callme.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