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Bug Bounty Intelligence

Source: HackerOne public disclosures · updated every 6h

Browse publicly disclosed bug bounty reports from HackerOne. Filter by severity, weakness type, or program. Cross-referenced with CVE IDs where available.

Disclosed Reports
12,219
CVE-linked
1,854
Programs
342
New This Week
11
Severity: All CriticalHighMediumLow
Type: All Information Disclosure 1173 Cross-site Scripting (XSS) … 747 Violation of Secure Design … 719 Improper Access Control - Generic 656 Improper Authentication - Generic 652 Cross-site Scripting (XSS) … 513 Uncontrolled Resource Consumption 483 Cross-site Scripting (XSS) … 461 Cross-Site Request Forgery (CSRF) 421 Privilege Escalation 375
Program filter: nextcloud✕
Path Traversal Vulnerability in Nextcloud Tables Enables Arbitrary File Exfiltration of Any Files Supported by PhpSpreadsheet Library
Nextcloud Path Traversal (CWE-22)CVE-2025-58051
Medium
2025-10-16
Directory Listing of publicly available assets
Nextcloud Information Exposure Through Directory Listing (CWE-548)
Medium
2025-09-29
Exposing debug.log file leads to server full path disclosure
Nextcloud Business Logic Errors (CWE-840)
Medium
2025-09-29
X-E2EE-SIGNATURE verification can be bypassed, leading to loss of confidentiality of end-to-end encrypted files
Nextcloud Improper Certificate Validation (CWE-295)CVE-2024-52510
Medium
2024-12-15
Incomplete sanitization in SVG preview provider
Nextcloud Information Disclosure (CWE-200)CVE-2024-52515
Medium
2024-12-15
Invisible Salamanders Attack against end_to_end_encryption in Nextcloud
Nextcloud Use of a Broken or Risky Cryptographic Algorithm (CWE-327)
Medium
2024-12-03
External storage - global credentials returned to the client side in plaintext
Nextcloud Information Disclosure (CWE-200)CVE-2024-52517
Medium
2024-11-21
Nextcloud Tables app - inserting rows to an arbitrary table possible
Nextcloud CVE-2024-52511
Medium
2024-11-17
User can copy locked folders and gain access to the contents
Nextcloud Improper Access Control - Generic (CWE-284)CVE-2024-52514
Medium
2024-11-16
ID4ME does not validate signature or expiration
Nextcloud Improper Verification of Cryptographic Signature (CWE-347)CVE-2024-37886
Medium
2024-07-14
Re-emergence of Security Vulnerability in Nextcloud Version 28 Previously Fixed in 25.0.4
Nextcloud Improper Access Control - Generic (CWE-284)CVE-2024-37884
Medium
2024-07-14
Event create can create attachments that link to other websites
Nextcloud Open Redirect (CWE-601)CVE-2024-37316
Medium
2024-07-14
Ability to by-pass second factor
Nextcloud Improper Authentication - Generic (CWE-287)CVE-2024-37313
Medium
2024-07-14
Notes app can be tricked into using a received share created before the user logged in
Nextcloud Business Logic Errors (CWE-840)CVE-2024-37317
Medium
2024-06-19
see card comments after remove shared board
Nextcloud Improper Access Control - Generic (CWE-284)CVE-2024-37883
Medium
2024-06-18
Read-only users can restore old versions
Nextcloud Improper Access Control - Generic (CWE-284)CVE-2024-37315
Medium
2024-06-14
ID4me feature of OpenID connect app available even when disabled
Nextcloud Improper Access Control - Generic (CWE-284)CVE-2024-37312
Medium
2024-05-30
Weak ssh algorithms and CVE-2023-48795 Discovered on various subdomains of nextcloud.com
Nextcloud Use of a Broken or Risky Cryptographic Algorithm (CWE-327)CVE-2023-48795
Medium
2024-05-22
Can download files by zipping the folder
Nextcloud Improper Access Control - Generic (CWE-284)CVE-2024-22404
Medium
2024-02-17
Improper handling of request URLs in nextcloud/guests allows guest users to bypass app allowlist
Nextcloud Improper Handling of URL Encoding (Hex Encoding) (CWE-177)CVE-2024-22402
Medium
2024-01-18
Top Weakness Types
Most Active Programs
ProgramReportsMax $
U.S. Dept Of Defense896—
Internet Bug Bounty817—
HackerOne609—
Nextcloud582—
Shopify464—
curl439—
Node.js third-party modules307—
GitLab258—
X / xAI250 $2,500
Uber239 $9,895