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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
avasin.reddit.comIn scope2026-11-14
avatar.reddit.comIn scope2026-11-14
avatars.reddit.comIn scope2026-11-14
avcome.reddit.comIn scope2026-11-14
mail.avcome.reddit.commailIn scope2026-11-14
avedge.reddit.comIn scope2026-11-14
avenger.reddit.comIn scope2026-11-14
avg.reddit.comIn scope2026-11-14
avia.reddit.comIn scope2026-11-14
www.avia.reddit.comIn scope2026-11-14
aviation.reddit.comIn scope2026-11-14
aviator.reddit.comIn scope2026-11-14
aviva.reddit.comIn scope2026-11-14
avl.reddit.comIn scope2026-11-14
avm.reddit.comIn scope2026-11-14
avon.reddit.comIn scope2026-11-14
avril.reddit.comIn scope2026-11-14
avrillavigne.reddit.comIn scope2026-11-14
avs.reddit.comIn scope2026-11-14
avto.reddit.comIn scope2026-11-14
www.avto.reddit.comIn scope2026-11-14
aw.reddit.comIn scope2026-11-14
awa.reddit.comIn scope2026-11-14
award.reddit.comIn scope2026-11-14
awards.reddit.comIn scope2026-11-14
awc.reddit.comIn scope2026-11-14
awesome.reddit.comIn scope2026-11-14
aws.reddit.comIn scope2026-11-14
aws-smail.reddit.comIn scope2026-11-14
awsdashboard.reddit.comIn scope2026-11-14
awstats.reddit.comIn scope2026-11-14
aww.reddit.comIn scope2026-11-14
ax.reddit.comIn scope2026-11-14
axa.reddit.comIn scope2026-11-14
axel.reddit.comIn scope2026-11-14
axiom.reddit.comIn scope2026-11-14
axis.reddit.comIn scope2026-11-14
axnet.reddit.comIn scope2026-11-14
ay.reddit.comIn scope2026-11-14
aya.reddit.comIn scope2026-11-14
aymen.reddit.comIn scope2026-11-14
ayoub.reddit.comIn scope2026-11-14
ayuda.reddit.comIn scope2026-11-14
az.reddit.comIn scope2026-11-14
www.az.reddit.comIn scope2026-11-14
aza.reddit.comIn scope2026-11-14
azalea.reddit.comIn scope2026-11-14
azcardinals.reddit.comIn scope2026-11-14
azerty.reddit.comIn scope2026-11-14
aziz.reddit.comIn scope2026-11-14
azmoon.reddit.comIn scope2026-11-14
azrael.reddit.comIn scope2026-11-14
aztec.reddit.comIn scope2026-11-14
azure.reddit.comIn scope2026-11-14
b.reddit.comIn scope2026-11-14
delivery.b.reddit.comIn scope2026-11-14
www.b.reddit.comIn scope2026-11-14
b0.reddit.comIn scope2026-11-14
b1.reddit.comIn scope2026-11-14
b10.reddit.comIn scope2026-11-14
b11.reddit.comIn scope2026-11-14
b117.reddit.comIn scope2026-11-14
b12.reddit.comIn scope2026-11-14
b123.reddit.comIn scope2026-11-14
b13.reddit.comIn scope2026-11-14
b14.reddit.comIn scope2026-11-14
b148.reddit.comIn scope2026-11-14
b15.reddit.comIn scope2026-11-14
b16.reddit.comIn scope2026-11-14
b161.reddit.comIn scope2026-11-14
b17.reddit.comIn scope2026-11-14
b18.reddit.comIn scope2026-11-14
b19.reddit.comIn scope2026-11-14
b2.reddit.comIn scope2026-11-14
b20.reddit.comIn scope2026-11-14
b21.reddit.comIn scope2026-11-14
b22.reddit.comIn scope2026-11-14
b23.reddit.comIn scope2026-11-14
b26.reddit.comIn scope2026-11-14
b2b.reddit.comIn scope2026-11-14
www.b2b.reddit.comIn scope2026-11-14
b2btest.reddit.comIn scope2026-11-14
b3.reddit.comIn scope2026-11-14
b30.reddit.comIn scope2026-11-14
b31.reddit.comIn scope2026-11-14
b32.reddit.comIn scope2026-11-14
b33.reddit.comIn scope2026-11-14
b4.reddit.comIn scope2026-11-14
b5.reddit.comIn scope2026-11-14
b6.reddit.comIn scope2026-11-14
b7.reddit.comIn scope2026-11-14
b8.reddit.comIn scope2026-11-14
b9.reddit.comIn scope2026-11-14
b99.reddit.comIn scope2026-11-14
ba.reddit.comIn scope2026-11-14
baba.reddit.comIn scope2026-11-14
babbage.reddit.comIn scope2026-11-14
babe.reddit.comIn scope2026-11-14
babel.reddit.comIn scope2026-11-14
babes.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.