Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%

nextcloud — Vulnerabilities & Security Advisories 297

Browse all 297 CVE security advisories affecting nextcloud. AI-powered Chinese analysis, POCs, and references for each vulnerability.

Nextcloud operates as an open-source file sharing and collaboration platform, providing self-hosted alternatives to commercial cloud services. With 261 recorded Common Vulnerabilities and Exposures (CVEs), the software has historically been susceptible to critical security flaws, including remote code execution, cross-site scripting, and privilege escalation vulnerabilities. These issues often stem from improper input validation or insecure default configurations within its PHP-based architecture. Notable incidents have involved unauthorized data access and server compromise, highlighting risks associated with complex plugin ecosystems and frequent updates. While the project maintains a public security policy and encourages responsible disclosure, the high volume of past CVEs indicates a need for rigorous code auditing and strict configuration management by administrators to mitigate potential exploitation vectors in production environments.

Found 260 results / 297 Clear Filters
CVE ID Title CVSS Severity Published
CVE-2021-41241 Advanced permissions is not respected for subfolders in Nextcloud server — security-advisories CWE-863 4.3 Medium 2022-03-08
CVE-2021-41239 User enumeration setting not respected in Nextcloud server — security-advisories CWE-200 5.3 Medium 2022-03-08
CVE-2021-41181 Nextcloud Talk app exposes chat messages on lockscreen — security-advisories CWE-200 2.4 Low 2022-03-08
CVE-2021-41180 Geolocation preview links can be set to arbitrary links in nextcloud talk — security-advisories CWE-601 4.7 Medium 2022-03-08
CVE-2021-41166 Permission bypass in Nextcloud Android App — security-advisories CWE-276 4.3 Medium 2022-01-26
CVE-2021-39222 XSS in Talk — security-advisories CWE-434 6.4 Medium 2021-11-15
CVE-2021-41179 Two-Factor Authentication not enforced for pages marked as public — security-advisories CWE-304 6.5 Medium 2021-10-25
CVE-2021-41178 File Traversal affecting SVG files on Nextcloud Server — security-advisories CWE-23 8.8 High 2021-10-25
CVE-2021-41177 Rate-limits not working on instances without configured memory cache backend — security-advisories CWE-799 8.1 High 2021-10-25
CVE-2021-39224 File path disclosure of shared files in OfficeOnline application — security-advisories CWE-200 3.5 Low 2021-10-25
CVE-2021-39225 Missing permission check on Deck API — security-advisories CWE-639 8.1 High 2021-10-25
CVE-2021-39223 File path disclosure of shared files in Richdocuments application — security-advisories CWE-200 4.8 Medium 2021-10-25
CVE-2021-39221 XSS in Contacts — security-advisories CWE-434 6.4 Medium 2021-10-25
CVE-2021-39220 Bypass of image blocking in Nextcloud Mail — security-advisories CWE-20 3.5 Low 2021-10-25
CVE-2021-32802 Preview generation used third-party library not suited for user-generated content in Nextcloud server — security-advisories CWE-829 9.3 Critical 2021-09-07
CVE-2021-32801 Exceptions may have logged Encryption-at-Rest key content in Nextcloud server — security-advisories CWE-532 5.5 Medium 2021-09-07
CVE-2021-32800 Bypass of Two Factor Authentication in Nextcloud server — security-advisories CWE-306 8.1 High 2021-09-07
CVE-2021-32766 Nextcloud Text app can disclose existence of folders in "File Drop" link share — security-advisories CWE-209 5.3 Medium 2021-09-07
CVE-2021-37629 Lack of ratelimit on Richdocuments OCS endpoint in nextcloud — security-advisories CWE-200 5.3 Medium 2021-09-07
CVE-2021-37628 File Drop can be bypassed using Richdocuments app in nextcloud — security-advisories CWE-639 7.5 High 2021-09-07
CVE-2021-32782 Cross-Site Scripting in Nextcloud Circles — security-advisories CWE-79 5.8 Medium 2021-09-07
CVE-2021-37630 Secret Circle can be joined without approval in Nextcloud Circles — security-advisories CWE-639 6.5 Medium 2021-09-07
CVE-2021-37631 Circle can be accessed by non-Circle members in Nextcloud Deck — security-advisories CWE-639 6.5 Medium 2021-09-07
CVE-2021-37617 Untrusted Search Path in Nextcloud Desktop Client — security-advisories CWE-426 7.3 High 2021-08-18
CVE-2021-32728 End-to-end encryption device setup did not verify public key — security-advisories CWE-295 6.5 Medium 2021-08-18
CVE-2021-32748 WOPI API not protected by credentials/IP check — security-advisories CWE-862 4.3 Medium 2021-07-27
CVE-2021-32741 Lack of ratelimit on public share link mount endpoint — security-advisories CWE-799 5.3 Medium 2021-07-12
CVE-2021-32734 File path disclosure of shared files in Nextcloud Text application — security-advisories CWE-209 3.1 Low 2021-07-12
CVE-2021-32733 XSS in Nextcloud Text application — security-advisories CWE-79 4.8 Medium 2021-07-12
CVE-2021-32727 End-to-end encryption device setup did not verify public key — security-advisories CWE-295 5.7 Medium 2021-07-12

This page lists every published CVE security advisory associated with nextcloud. Each entry links to a detailed page with CVSS scoring, CWE classification, affected products and references. AI-generated Chinese analysis is provided for fast triage.