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Bug bounty program

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

Subdomains of Reddit
NameScopeFirst seen
crayonpop.reddit.comIn scope2026-11-14
crazy.reddit.comIn scope2026-11-14
crazyideas.reddit.comIn scope2026-11-14
crc.reddit.comIn scope2026-11-14
cream.reddit.comIn scope2026-11-14
create.reddit.comIn scope2026-11-14
creater.reddit.comIn scope2026-11-14
creation.reddit.comIn scope2026-11-14
creative.reddit.comIn scope2026-11-14
creator.reddit.comIn scope2026-11-14
credit.reddit.comIn scope2026-11-14
creditbank.reddit.comIn scope2026-11-14
creditcard.reddit.comIn scope2026-11-14
credito.reddit.comIn scope2026-11-14
crema.reddit.comIn scope2026-11-14
creme.reddit.comIn scope2026-11-14
crew.reddit.comIn scope2026-11-14
cri.reddit.comIn scope2026-11-14
cricket.reddit.comIn scope2026-11-14
crime.reddit.comIn scope2026-11-14
crimea.reddit.comIn scope2026-11-14
www.crimea.reddit.comIn scope2026-11-14
crimson.reddit.comIn scope2026-11-14
cringepics.reddit.comIn scope2026-11-14
cris.reddit.comIn scope2026-11-14
cristal.reddit.comIn scope2026-11-14
cristi.reddit.comIn scope2026-11-14
cristian.reddit.comIn scope2026-11-14
cristina.reddit.comIn scope2026-11-14
critical.reddit.comIn scope2026-11-14
crl.reddit.comIn scope2026-11-14
crl1.reddit.comIn scope2026-11-14
crl2.reddit.comIn scope2026-11-14
crm.reddit.comIn scope2026-11-14
crm-dev.reddit.comdevIn scope2026-11-14
autoconfig.crm.reddit.comIn scope2026-11-14
autodiscover.crm.reddit.commailIn scope2026-11-14
webdisk.crm.reddit.comIn scope2026-11-14
www.crm.reddit.comIn scope2026-11-14
crm1.reddit.comIn scope2026-11-14
crm2.reddit.comIn scope2026-11-14
crm3.reddit.comIn scope2026-11-14
crmdev.reddit.comIn scope2026-11-14
crmtest.reddit.comIn scope2026-11-14
cro.reddit.comIn scope2026-11-14
croatia.reddit.comIn scope2026-11-14
cron.reddit.comIn scope2026-11-14
cronos.reddit.comIn scope2026-11-14
cross.reddit.comIn scope2026-11-14
crossroads.reddit.comIn scope2026-11-14
crossword.reddit.comIn scope2026-11-14
crow.reddit.comIn scope2026-11-14
crowd.reddit.comIn scope2026-11-14
crown.reddit.comIn scope2026-11-14
crs.reddit.comIn scope2026-11-14
crt.reddit.comIn scope2026-11-14
cruise.reddit.comIn scope2026-11-14
crumps2.reddit.comIn scope2026-11-14
crunch.reddit.comIn scope2026-11-14
crux.reddit.comIn scope2026-11-14
cryo.reddit.comIn scope2026-11-14
cryptocurrency.reddit.comIn scope2026-11-14
cryptocurrencydev.reddit.comIn scope2026-11-14
crypton.reddit.comIn scope2026-11-14
cryptoubi.reddit.comIn scope2026-11-14
crystal.reddit.comIn scope2026-11-14
cs.reddit.comIn scope2026-11-14
mx.cs.reddit.commailIn scope2026-11-14
www.cs.reddit.comIn scope2026-11-14
cs01.reddit.comIn scope2026-11-14
cs02.reddit.comIn scope2026-11-14
cs1.reddit.comIn scope2026-11-14
cs16.reddit.comIn scope2026-11-14
cs2.reddit.comIn scope2026-11-14
cs3.reddit.comIn scope2026-11-14
cs4.reddit.comIn scope2026-11-14
cs5.reddit.comIn scope2026-11-14
csa.reddit.comIn scope2026-11-14
csbooks.reddit.comIn scope2026-11-14
csc.reddit.comIn scope2026-11-14
csd.reddit.comIn scope2026-11-14
cse.reddit.comIn scope2026-11-14
csf.reddit.comIn scope2026-11-14
csg.reddit.comIn scope2026-11-14
csi.reddit.comIn scope2026-11-14
csj.reddit.comIn scope2026-11-14
csm.reddit.comIn scope2026-11-14
csm-nat-10.reddit.comIn scope2026-11-14
cso.reddit.comIn scope2026-11-14
csp.reddit.comIn scope2026-11-14
csr.reddit.comIn scope2026-11-14
css.reddit.comIn scope2026-11-14
www.css.reddit.comIn scope2026-11-14
css1.reddit.comIn scope2026-11-14
css2.reddit.comIn scope2026-11-14
cstest.reddit.comIn scope2026-11-14
cstrike.reddit.comIn scope2026-11-14
csuf.reddit.comIn scope2026-11-14
csv1.reddit.comIn scope2026-11-14
csweb.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.