CVE-2021-32782

Nextcloud Circles is an open source social network built for the nextcloud ecosystem. In affected versions the Nextcloud Circles application is vulnerable to a stored Cross-Site Scripting (XSS) vulnerability. Due the strict Content-Security-Policy shipped with Nextcloud, this issue is not exploitable on modern browsers supporting Content-Security-Policy. It is recommended that the Nextcloud Circles application is upgraded to 0.21.3, 0.20.10 or 0.19.14 to resolve this issue. As a workaround users may use a browser that has support for Content-Security-Policy. A notable exemption is Internet Explorer which does not support CSP properly.

• CWE-79
• CWE-79

• https://github.com/nextcloud/circles/commit/dbb97a83ccb342c839a54f088aa19b8ba6844b0ePatch, Third Party Advisory
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hgpq-28gj-jrj9Patch, Third Party Advisory
• https://hackerone.com/reports/1217606Permissions Required, Third Party Advisory
• https://github.com/nextcloud/circles/commit/dbb97a83ccb342c839a54f088aa19b8ba6844b0ePatch, Third Party Advisory
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hgpq-28gj-jrj9Patch, Third Party Advisory
• https://hackerone.com/reports/1217606Permissions Required, Third Party Advisory

Published

Sep 7, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2021-32777Envoy is an open source L7 proxy and communication bus desig…8.3
• CVE-2021-32778Envoy is an open source L7 proxy and communication bus desig…7.5
• CVE-2021-32779Envoy is an open source L7 proxy and communication bus desig…8.3
• CVE-2021-3278Local Service Search Engine Management System 1.0 has a vuln…9.8
• CVE-2021-32780Envoy is an open source L7 proxy and communication bus desig…7.5
• CVE-2021-32781Envoy is an open source L7 proxy and communication bus desig…7.5
• CVE-2021-32783Contour is a Kubernetes ingress controller using Envoy proxy…8.5
• CVE-2021-32785mod_auth_openidc is an authentication/authorization module f…7.5
• CVE-2021-32786mod_auth_openidc is an authentication/authorization module f…6.1
• CVE-2021-32787Sourcegraph is a code search and navigation engine. Sourcegr…4.3
• CVE-2021-32788Discourse is an open source discussion platform. In versions…4.3
• CVE-2021-32789woocommerce-gutenberg-products-block is a feature plugin for…7.5