External storage credentials stored for wrong user (NC-SA-2021-004)

A missing user check in Nextcloud 20.0.5 and prior allowed to populate your own credentials for other users external storage configuration when they did not configure one yet...

Reflected XSS when renaming malicious file (NC-SA-2021-005)

Missing sanitization in Nextcloud Server 20.0.5 and prior allowed to perform a reflected XSS when saving html as file name and causing an error on rename e.g. by renaming to an existing file. The risk is mostly mitigated due to the strict Content-Security-Policy CSP of Nextcloud, and thus mainly...

Nextcloud: [nextcloud.com] Control character allowed in Submit Question

Issue descriptions We found that the maximum length of the first and last name fields was not set to 32 characters at registration and to 1000 characters when using the profile update form. The attacker can use this method as a malware attack, the user will redirect to a website that contains...

Nextcloud: Nextcloud Desktop Client RCE via malicious URI schemes

Nextcloud Desktop utilizes QT's QDesktopServices::openUrl to open URLs. This function invokes the OS'/Desktop environment's default application to handling the URI scheme and file extension. During the Nextcloud Add Account flow, the server's login website is opened within a native window/WebView...

Nextcloud Contacts Cross-Site Scripting Vulnerability (CNVD-2021-03031)

Nextcloud Contacts is the user interface for Nextcloud's CardDAV server. A cross-site scripting vulnerability exists in Nextcloud Contacts 3.4.0. The vulnerability stems from a missing file type check. The vulnerability can be exploited to conduct cross-site scripting attacks by uploading SVG fil...

Nextcloud Contacts Cross-Site Scripting Vulnerability (CNVD-2021-03032)

Nextcloud Contacts is the user interface for Nextcloud's CardDAV server. A cross-site scripting vulnerability exists in Nextcloud Contacts 3.3.0. The vulnerability stems from a missing file type check. An attacker can exploit this vulnerability by uploading a malicious SVG file to conduct a...

CVE-2020-8281

A missing file type check in Nextcloud Contacts 3.3.0 allows a malicious user to upload malicious SVG files to perform cross-site scripting XSS attacks...

CVE-2020-8280

A missing file type check in Nextcloud Contacts 3.4.0 allows a malicious user to upload SVG files as PNG files to perform cross-site scripting XSS attacks...

CVE-2020-8281

A missing file type check in Nextcloud Contacts 3.3.0 allows a malicious user to upload malicious SVG files to perform cross-site scripting XSS attacks...

CVE-2020-8280

A missing file type check in Nextcloud Contacts 3.4.0 allows a malicious user to upload SVG files as PNG files to perform cross-site scripting XSS attacks...

CVE-2020-8280

A missing file type check in Nextcloud Contacts 3.4.0 allows a malicious user to upload SVG files as PNG files to perform cross-site scripting XSS attacks...

Cross site scripting

A missing file type check in Nextcloud Contacts 3.3.0 allows a malicious user to upload malicious SVG files to perform cross-site scripting XSS attacks...

Cross site scripting

A missing file type check in Nextcloud Contacts 3.4.0 allows a malicious user to upload SVG files as PNG files to perform cross-site scripting XSS attacks...

CVE-2020-8281

A missing file type check in Nextcloud Contacts 3.3.0 allows a malicious user to upload malicious SVG files to perform cross-site scripting XSS attacks...

CVE-2020-8280

CVE-2020-8280 — Nextcloud Contacts 3.4.0 suffers from a missing file type check that lets an attacker upload SVG files with a PNG extension to trigger cross-site scripting (XSS) when viewing a contact image. The issue is documented across multiple feeds (NVD/NSS, CNVD, Red Hat, OSV, CNVD) and is ...

CVE-2020-8280

A missing file type check in Nextcloud Contacts 3.4.0 allows a malicious user to upload SVG files as PNG files to perform cross-site scripting XSS attacks...

CVE-2020-8281

A missing file type check in Nextcloud Contacts 3.3.0 allows a malicious user to upload malicious SVG files to perform cross-site scripting XSS attacks...

CVE-2020-8281

Nextcloud Contacts 3.3.0 is affected by a missing file type check that allows uploading SVG files, enabling cross-site scripting (XSS). The issue is documented in the Nextcloud advisory NC-SA-2020-045 and corroborated by CNVD/NVD entries and a related HackerOne report, indicating practical XSS vi...

Nextcloud 跨站脚本漏洞

Nextcloud Contacts is the user interface for Nextcloud's CardDAV server. A cross-site scripting vulnerability exists in Nextcloud Contacts 3.4.0. The vulnerability stems from a missing file type check. The vulnerability can be exploited to conduct cross-site scripting attacks by uploading SVG fil...

Nextcloud 跨站脚本漏洞

Nextcloud Contacts is the user interface for Nextcloud's CardDAV server. A cross-site scripting vulnerability exists in Nextcloud Contacts 3.3.0. The vulnerability stems from a missing file type check. An attacker can exploit this vulnerability by uploading a malicious SVG file to conduct a...