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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
cms.reddit.comadminIn scope2026-11-14
www.cms.reddit.comadminIn scope2026-11-14
cms1.reddit.comadminIn scope2026-11-14
cms2.reddit.comadminIn scope2026-11-14
cms3.reddit.comadminIn scope2026-11-14
cmsdev.reddit.comIn scope2026-11-14
cmstest.reddit.comIn scope2026-11-14
cmt.reddit.comIn scope2026-11-14
cn.reddit.comIn scope2026-11-14
autoconfig.cn.reddit.comIn scope2026-11-14
autodiscover.cn.reddit.commailIn scope2026-11-14
webdisk.cn.reddit.comIn scope2026-11-14
www.cn.reddit.comIn scope2026-11-14
cname.reddit.comIn scope2026-11-14
cnc.reddit.comIn scope2026-11-14
cnet.reddit.comIn scope2026-11-14
cnr.reddit.comIn scope2026-11-14
cns.reddit.comIn scope2026-11-14
cns1.reddit.comIn scope2026-11-14
cns2.reddit.comIn scope2026-11-14
cns3.reddit.comIn scope2026-11-14
co.reddit.comIn scope2026-11-14
www.co.reddit.comIn scope2026-11-14
coa.reddit.comIn scope2026-11-14
coach.reddit.comIn scope2026-11-14
coachella.reddit.comIn scope2026-11-14
cobalt.reddit.comIn scope2026-11-14
cobbler.reddit.comIn scope2026-11-14
cobol.reddit.comIn scope2026-11-14
cobra.reddit.comIn scope2026-11-14
coc.reddit.comIn scope2026-11-14
coca.reddit.comIn scope2026-11-14
cock.reddit.comIn scope2026-11-14
coco.reddit.comIn scope2026-11-14
cocoa.reddit.comIn scope2026-11-14
coconut.reddit.comIn scope2026-11-14
cocoon.reddit.comIn scope2026-11-14
cocreddit.reddit.comIn scope2026-11-14
cod.reddit.comIn scope2026-11-14
www.cod.reddit.comIn scope2026-11-14
code.reddit.comIn scope2026-11-14
www.code.reddit.comIn scope2026-11-14
codecsworld.reddit.comIn scope2026-11-14
codemonkeytalks.reddit.comIn scope2026-11-14
coder.reddit.comIn scope2026-11-14
codex.reddit.comIn scope2026-11-14
coding.reddit.comIn scope2026-11-14
www.coding.reddit.comIn scope2026-11-14
cody.reddit.comIn scope2026-11-14
coestar.reddit.comIn scope2026-11-14
coffee.reddit.comIn scope2026-11-14
cognos.reddit.comIn scope2026-11-14
cogsci.reddit.comIn scope2026-11-14
coin.reddit.comIn scope2026-11-14
coins.reddit.comIn scope2026-11-14
coke.reddit.comIn scope2026-11-14
coldstart.reddit.comIn scope2026-11-14
coleman.reddit.comIn scope2026-11-14
colgate.reddit.comIn scope2026-11-14
colibri.reddit.comIn scope2026-11-14
collab.reddit.comIn scope2026-11-14
collaborate.reddit.comIn scope2026-11-14
collaboration.reddit.comIn scope2026-11-14
collapse.reddit.comIn scope2026-11-14
collection.reddit.comIn scope2026-11-14
collections.reddit.comIn scope2026-11-14
collector.reddit.comIn scope2026-11-14
college.reddit.comIn scope2026-11-14
collins.reddit.comIn scope2026-11-14
colo.reddit.comIn scope2026-11-14
colocation.reddit.comIn scope2026-11-14
colombia.reddit.comIn scope2026-11-14
color.reddit.comIn scope2026-11-14
colorado.reddit.comIn scope2026-11-14
coloradoavalanche.reddit.comIn scope2026-11-14
coloradorockies.reddit.comIn scope2026-11-14
colorful.reddit.comIn scope2026-11-14
colors.reddit.comIn scope2026-11-14
colossus.reddit.comIn scope2026-11-14
colt.reddit.comIn scope2026-11-14
colts.reddit.comIn scope2026-11-14
columbia.reddit.comIn scope2026-11-14
columbus.reddit.comIn scope2026-11-14
com.reddit.comIn scope2026-11-14
com-services-vip.reddit.comIn scope2026-11-14
pldthome.com.reddit.comIn scope2026-11-14
www.com.reddit.comIn scope2026-11-14
combat.reddit.comIn scope2026-11-14
combinedgifs.reddit.comIn scope2026-11-14
combo.reddit.comIn scope2026-11-14
comcast.reddit.comIn scope2026-11-14
come.reddit.comIn scope2026-11-14
reddit.comedgebucketg4opfdhcxkzlhxoib5.reddit.comIn scope2026-11-14
comedy.reddit.comIn scope2026-11-14
comercial.reddit.comIn scope2026-11-14
comet.reddit.comIn scope2026-11-14
comet1.reddit.comIn scope2026-11-14
comet2.reddit.comIn scope2026-11-14
comeupforairbitches.reddit.comIn scope2026-11-14
comic.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