Reflected XSS in error pages (NC-SA-2017-008)

Inadequate escaping of error messages leads to XSS vulnerabilities in multiple components.Note that Nextcloud employs a strict Content-Security-Policy preventing exploitation of this XSS issue on modern web browsers...

CVE-2017-0893: Improper Neutralization of Input During Web Page Generation

Nextcloud Server before 9.0.58 and 10.0.5 and 11.0.3 are shipping a vulnerable JavaScript library for sanitizing untrusted user-input which suffered from a XSS vulnerability caused by a behaviour change in Safari 10.1 and 10.2. Note that Nextcloud employs a strict Content-Security-Policy preventi...

CVE-2017-0894: Improper Authorization

Nextcloud Server before 11.0.3 is vulnerable to disclosure of valid share tokens for public calendars due to a logical error. Thus granting an attacker potentially access to publicly shared calendars without knowing the share token...

CVE-2017-0892: Improper Authorization

Nextcloud Server before 11.0.3 is vulnerable to an improper session handling allowed an application specific password without permission to the files access to the users file...

Stored XSS in Gallery application (NC-SA-2017-010)

A JavaScript library used by Nextcloud for sanitizing untrusted user-input suffered from a XSS vulnerability caused by a behaviour change in Safari 10.1 and 10.2.Note that Nextcloud employs a strict Content-Security-Policy preventing exploitation of this XSS issue on modern web browsers...

CVE-2017-0895: Improper Authorization

Nextcloud Server before 10.0.4 and 11.0.2 are vulnerable to disclosure of calendar and addressbook names to other logged-in users. Note that no actual content of the calendar and addressbook has been disclosed...

CVE-2017-0890: Improper Neutralization of Input During Web Page Generation

Nextcloud Server before 11.0.3 is vulnerable to an inadequate escaping leading to a XSS vulnerability in the search module. To be exploitable a user has to write or paste malicious content into the search dialogue...

CVE-2017-0891: Improper Neutralization of Input During Web Page Generation

Nextcloud Server before 9.0.58 and 10.0.5 and 11.0.3 are vulnerable to an inadequate escaping of error messages leading to XSS vulnerabilities in multiple components...

PT-2017-10695 · Nextcloud · Nextcloud Server

Name of the Vulnerable Software and Affected Versions: Nextcloud Server versions prior to 11.0.3 Description: The issue is related to a logical error that leads to the disclosure of valid share tokens for public calendars. This could potentially allow an attacker to access publicly shared calenda...

Nextcloud: I am because bug

I'm because I hacker found bug because I report this bug I want to report a bug and because want some $$$$ so please because you are telling me how much you pay money so I give you bug. Me because very poor :' want money because father :' F181820 Thank you wish you because pay lots $$$$$$$$...

Nextcloud: Wordpress Vulnerable to Potential Unauthorized Password Reset

Hi Team, Yesterday, a new 0day on wordpress core has been discovered by Dawid Golunski, so i want you guys to be aware of it to take an immediate action since nextcloud was using wordpress. Wordpress has a password reset feature that contains a vulnerability which might in some cases allow...

Nextcloud: SQL exception in JSON format

Hi, I know this is not critical, just a design issue, but it will be better if it will not show up to the user as an error, maybe in log files readable to the www-user or to the root user in order to debug. PoC: ---------------------- 1. Create a user and confirm the password 2. Capture the packe...

Nextcloud: Missing Rate Limiting protection leading to mass triggering of e-mails

The issue is that there is a speed bump missing in the subscription of e-mail for a user. This would eventually let the attacker spam to any random e-mail resulting in exhaustion of resources on your side and I see that you are using Amazon AWS's SES where you are charged per e-mail. If a dedicat...

Nextcloud: Cross Site Scripting

Hello team, While i was hunting https://help.nextcloud.com, i found xss there in comment/reply box.. Steps to reproduce 1. go to https://help.nextcloud.com. 2. Click On Any I'm selecting "Welcome to the Nextcloud forums" 3. Sign in or Sign up in your account. 4. Click Reply.. 5. Type or paste :-...

Nextcloud: information disclose

Hello Team . I Reported a issue - disclosure SERVER Version !! when i interrupt this https://demo.nextcloud.com/ Request , its disclosure The server version Server: Apache/2.4.6 CentOS OpenSSL/1.0.1e-fips As you can See this Pic , or you can Interrupt the url useing Any Proxy tools like Burp Suit...

Nextcloud: Stored XSS in Gallery application (NC-SA-2017-010)

Stored XSS in Gallery application NC-SA-2017-010 Risk level: Low CVSS v3 Base Score: 3 AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N CWE: Improper Neutralization of Input During Web Page Generation 'Cross-site Scripting' CWE-79 Description A JavaScript library used by Nextcloud for sanitizing untrusted...

Nextcloud: Content (Text) Injection at https://nextcloud.com

Hi, I may have found a ContentText Injection on this domain https://nextcloud.com PoC: https://nextcloud.com/federation/[email protected] and please fill your account infomation in http://form.google.com/xasw Let me know if you need more information...

Nextcloud: Clickjacking In https://demo.nextcloud.com

Hi Nextcloud, Clickjacking In https://demo.nextcloud.com This Is Zeeshan,An Ethical Hacker, I Have Found A Security Issue In Your Site Clickjacking In nextcloud https://demo.nextcloud.com Page Website is vulnerable to clickjacking! Please Fix It As Soon As Possible Best Regards, Zeeshan Waheed...

Nextcloud: Possible SSRF in email server settings(SMTP mode)

Description: vul address https://demo.nextcloud.com/xxx/settings/admin/additional,when you change smtp server address ,you will get some different hints. Reproduce steps: 1.Go to https://demo.nextcloud.com/xxx/settings/admin/additional,choose SMTP mode 2.Set server address to "172.17.1.0,then you...

Nextcloud: The email API to test email-server settings is unlimited and can be used as a email bomb

Description: The email-server settings test function in https://demo.nextcloud.com/xxx/settings/admin/additional is unlimited and can be used as a email bomb. And the test email API is https://demo.nextcloud.com/xxx/settings/admin/mailtest Reproduce steps: 1.Go to...