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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
chita.reddit.comIn scope2026-11-14
chitchat.reddit.comIn scope2026-11-14
chl.reddit.comIn scope2026-11-14
chloe.reddit.comIn scope2026-11-14
chloegracemoretz.reddit.comIn scope2026-11-14
chm.reddit.comIn scope2026-11-14
cho.reddit.comIn scope2026-11-14
chocolate.reddit.comIn scope2026-11-14
choices.reddit.comIn scope2026-11-14
choose.reddit.comIn scope2026-11-14
chopin.reddit.comIn scope2026-11-14
chou.reddit.comIn scope2026-11-14
chouchou.reddit.comIn scope2026-11-14
chris.reddit.comIn scope2026-11-14
christian.reddit.comIn scope2026-11-14
www.christian.reddit.comIn scope2026-11-14
christianity.reddit.comIn scope2026-11-14
christinaricci.reddit.comIn scope2026-11-14
christmas.reddit.comIn scope2026-11-14
christopher.reddit.comIn scope2026-11-14
chrisweredigital.reddit.comIn scope2026-11-14
chromakey.reddit.comIn scope2026-11-14
chrome.reddit.comIn scope2026-11-14
chromium.reddit.comIn scope2026-11-14
chronicle.reddit.comIn scope2026-11-14
chronos.reddit.comIn scope2026-11-14
chrysler.reddit.comIn scope2026-11-14
chs.reddit.comIn scope2026-11-14
chum.reddit.comIn scope2026-11-14
church.reddit.comIn scope2026-11-14
ci.reddit.comciIn scope2026-11-14
ciao.reddit.comIn scope2026-11-14
cic.reddit.comIn scope2026-11-14
cie.reddit.comIn scope2026-11-14
cielo.reddit.comIn scope2026-11-14
cim.reddit.comIn scope2026-11-14
cim-api.reddit.comapiIn scope2026-11-14
cim-api-dev.reddit.comapi, devIn scope2026-11-14
cim-api-qa.reddit.comapi, testIn scope2026-11-14
cim-api-uat.reddit.comapi, testIn scope2026-11-14
cim-data-quality-qa.reddit.comtestIn scope2026-11-14
cim-dev.reddit.comdevIn scope2026-11-14
cim-geo-dev.reddit.comdevIn scope2026-11-14
cincinnati.reddit.comIn scope2026-11-14
cine.reddit.comIn scope2026-11-14
cinema.reddit.comIn scope2026-11-14
www.cinema.reddit.comIn scope2026-11-14
cinema4d.reddit.comIn scope2026-11-14
cip.reddit.comIn scope2026-11-14
circe.reddit.comIn scope2026-11-14
circle.reddit.comIn scope2026-11-14
circlejerk.reddit.comIn scope2026-11-14
circlejerkdc.reddit.comIn scope2026-11-14
circus.reddit.comIn scope2026-11-14
cirrus.reddit.comIn scope2026-11-14
cis.reddit.comIn scope2026-11-14
www.cis.reddit.comIn scope2026-11-14
cisco.reddit.comIn scope2026-11-14
cisco-capwap-controller.reddit.comIn scope2026-11-14
cisco-lwapp-controller.reddit.comIn scope2026-11-14
cisco1.reddit.comIn scope2026-11-14
ciscoworks.reddit.comIn scope2026-11-14
cit.reddit.comIn scope2026-11-14
asp-winterville.cit.reddit.comIn scope2026-11-14
bayside.cit.reddit.comIn scope2026-11-14
cisl-gijon.cit.reddit.comIn scope2026-11-14
cisl-murcia.cit.reddit.comIn scope2026-11-14
cisl-plaisir.cit.reddit.comIn scope2026-11-14
fakalipit-mbp.cit.reddit.comIn scope2026-11-14
isp-caledon.cit.reddit.comIn scope2026-11-14
penarth.cit.reddit.comIn scope2026-11-14
swansea.cit.reddit.comIn scope2026-11-14
tallow.cit.reddit.comIn scope2026-11-14
citadel.reddit.comIn scope2026-11-14
citibank.reddit.comIn scope2026-11-14
citiesandsailors.reddit.comIn scope2026-11-14
citrix.reddit.comvpnIn scope2026-11-14
citrix1.reddit.comvpnIn scope2026-11-14
citrix2.reddit.comvpnIn scope2026-11-14
citroen.reddit.comIn scope2026-11-14
citron.reddit.comIn scope2026-11-14
city.reddit.comIn scope2026-11-14
www.city.reddit.comIn scope2026-11-14
civcast.reddit.comIn scope2026-11-14
civil.reddit.comIn scope2026-11-14
cj.reddit.comIn scope2026-11-14
cjc.reddit.comIn scope2026-11-14
cjxy.reddit.comIn scope2026-11-14
cjy.reddit.comIn scope2026-11-14
ck.reddit.comIn scope2026-11-14
ckarea.reddit.comIn scope2026-11-14
mail.ckarea.reddit.commailIn scope2026-11-14
cl.reddit.comIn scope2026-11-14
www.cl.reddit.comIn scope2026-11-14
cl1.reddit.comIn scope2026-11-14
claims.reddit.comIn scope2026-11-14
claire.reddit.comIn scope2026-11-14
clan.reddit.comIn scope2026-11-14
clans.reddit.comIn scope2026-11-14
clara.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