Information disclosure

An issue was discovered in Mattermost Server before 5.18.0. It allows attackers to cause a denial of service memory consumption via a large Slack import...

CVE-2019-20845

An issue was discovered in Mattermost Server before 5.18.0. It allows attackers to cause a denial of service memory consumption via a large Slack import...

CVE-2017-18879: Improper Neutralization of Input During Web Page Generation

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS could occur via the authorlink field of a Slack attachment...

CVE-2019-20845: Allocation of Resources Without Limits or Throttling

An issue was discovered in Mattermost Server before 5.18.0. It allows attackers to cause a denial of service memory consumption via a large Slack import...

CVE-2017-18880: Improper Neutralization of Input During Web Page Generation

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS could occur via the titlelink field of a Slack attachment...

GitMonitor - A Github Scanning System To Look For Leaked Sensitive Information Based On Rules

GitMonitor is a Github scanning system to look for leaked sensitive information based on rules. I know that there are a lot of very good other tools for finding sensitive information leaked on Github right now, I myself currently still use some of them. However, I think they still lack some...

Search from the Slack app ignores permissions in Confluence

h3. Issue Summary Search from the Slack app ignores permissions in Confluence. There are different scenarios where we see an issue with searching Confluence from Slack: If a user doesn't have permissions to access the space, they can still search for content Search returns information from Spaces...

Slack: Stored XSS through PDF viewer

Slack allows users to upload files to their Workspace to facilitate sharing information between team members as well as with other workspaces. In addition, with the aim of easing access to PDF files, Slack provides its own "PDF Viewer" https://app.slack.com/pdf-viewer embedded in the application...

Slack: Workspace configuration metadata disclosure

Slack allows users to create a Workspace using the Get Started page, located at https://slack.com/get-started/create. This process uses workspace metadata to direct the user-provided email address to existing Slack accounts. However, if a domain pertaining to an Enterprise customer is submitted...

Malicious Package

Overview alertyplugin-slack is a malicious package. Affected versions of this package were found to be a Malicious Package, as it utilised typosquatting to run Malicious 3rd party scripts. It replaced genuine packages using an and replaced it with - and vice versa Remediation Avoid using...

ThreatList: Skype-Themed Apps Hide a Raft of Malware

Popular conferencing apps have become a major cybercrime lure during the COVID-19 work-from-home era – and Skype is the undisputed leader when it comes to being impersonated by malicious downloads, researchers have found. An April analysis from Kaspersky uncovered a total of 120,000 suspicious...

Beyond Zoom: How Safe Are Slack and Other Collaboration Apps?

As the coronavirus pandemic continues to worsen, remote-collaboration platforms – now fixtures in many workers’ “new normal” – are facing more scrutiny. Popular video-conferencing app Zoom may currently be in the cybersecurity hot seat, but other collaboration tools, such as Slack, Trello, WebEx...

Slack Nebula Path Traversal Vulnerability

Slack Nebula is a scalable overlay network tool. A security vulnerability exists in Slack Nebula 1.1.0 and earlier versions. An attacker can exploit the vulnerability to execute code...

CVE-2020-11498

Slack Nebula through 1.1.0 contains a relative path vulnerability that allows a low-privileged attacker to execute code in the context of the root user via tundarwin.go or tunwindows.go. A user can also use Nebula to execute arbitrary code in the user's own context, e.g., for user-level persisten...

CVE-2020-11498

Slack Nebula through 1.1.0 contains a relative path vulnerability that allows a low-privileged attacker to execute code in the context of the root user via tundarwin.go or tunwindows.go. A user can also use Nebula to execute arbitrary code in the user's own context, e.g., for user-level persisten...

Design/Logic Flaw

Slack Nebula through 1.1.0 contains a relative path vulnerability that allows a low-privileged attacker to execute code in the context of the root user via tundarwin.go or tunwindows.go. A user can also use Nebula to execute arbitrary code in the user's own context, e.g., for user-level persisten...

CVE-2020-11498

Slack Nebula through 1.1.0 contains a relative path vulnerability that allows a low-privileged attacker to execute code in the context of the root user via tundarwin.go or tunwindows.go. A user can also use Nebula to execute arbitrary code in the user's own context, e.g., for user-level persisten...

CVE-2020-11498

CVE-2020-11498 affects Slack Nebula up to version 1.1.0. A relative-path vulnerability in the tunnel drivers tun_darwin.go and tun_windows.go allows a low-privileged attacker to execute code in the context of the root user, with potential user-context execution as well. The issue enables path tra...

CVE-2020-11498: Improper Limitation of a Pathname to a Restricted Directory

Slack Nebula through 1.1.0 contains a relative path vulnerability that allows a low-privileged attacker to execute code in the context of the root user via tundarwin.go or tunwindows.go. A user can also use Nebula to execute arbitrary code in the user's own context, e.g., for user-level persisten...

Slack: XSS on link and window.opener

A vulnerability was found in Slack that allowed for cross-site scripting XSS attacks through a link and the window.opener property. This could lead to redirection to malicious sites or execution of JavaScript code. The impact of this vulnerability was potentially severe...