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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:Build and CI
First seen
Text fileClear filters19 names
Subdomains of Reddit
NameScopeFirst seen
build.dubsmash.comciNot in the scope2026-11-14
argo.reddit.comciIn scope2026-11-14
bamboo.reddit.comciIn scope2026-11-14
build.reddit.comciIn scope2026-11-14
www.build.reddit.comciIn scope2026-11-14
ci.reddit.comciIn scope2026-11-14
jenkins.reddit.comciIn scope2026-11-14
build.secure.reddit.comciIn scope2026-11-14
travis.reddit.comciIn scope2026-11-14
build.www.reddit.comciIn scope2026-11-14
build-lohika.www.reddit.comciIn scope2026-11-14
drone.snooguts.netciIn scope2026-11-14
drone-post-custom-post-8-input.staging.snooguts.netci, stagingIn scope2026-11-14
build.ue1.snooguts.netciIn scope2026-11-14
tomcat-vault.build.ue1.snooguts.netci, toolsIn scope2026-11-14
vault.build.ue1.snooguts.netci, toolsIn scope2026-11-14
wildcard.build.ue1.snooguts.netciIn scope2026-11-14
drone.reddit.ue1.snooguts.netciIn scope2026-11-14
032drone.pdia0-chef.reddit.ue1.snooguts.netciIn 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