Ransom Busters Claims It Hacked Ransomware Servers, Asks Victims for Up to $60,000

A ransomware affiliate calling itself Ransom Busters has been spotted proactively sending emails to victim organizations and claims to delete stolen data from ransomware groups' servers in exchange for a fee ranging from $20,000 to $60,000. "In these messages, the third-party offers to help the...

CVE-2026-75833 Grav API Plugin Open Redirect via Backslash Bypass

The Grav API plugin getgrav/grav-plugin-api, bundled with Grav 2.0's admin-next/API stack before version 1.0.14 contains an open redirect weakness in SsoController::sanitizeReturnTo. The function rejects a literal '//' prefix but does not account for browsers normalizing backslashes to slashes in...

CVE-2026-75833

The Grav API plugin (bundled with Grav 2.0's admin-next/API stack) before version 1.0.14 has an open redirect in SsoController::sanitizeReturnTo(): a backslash-prefix like /\evil.com bypasses the // guard and is normalized by browsers to //evil.com, enabling post-OAuth-login phishing. Exploitatio...

CVE-2026-16049 _GitLab Plugin allows cross-channel post injection and phishing via missing channel permission checks in issue API endpoints_

Mattermost Plugins versions =11.8 10.20.11 11.5.7.0 The Mattermost GitLab plugin fails to verify channel permissions when processing API requests with a caller-supplied postid, and fails to validate the weburl parameter against the configured GitLab instance, which allows an authenticated attacke...

CVE-2026-16049

The Mattermost GitLab plugin (versions ≤11.8, 10.20.11, 11.5.7.0) fails to verify channel permissions for caller-supplied post_id and does not validate the web_url parameter against the configured GitLab instance. Through the createIssue and attachCommentToIssue API endpoints, an authenticated at...

CVE-2026-16049 _GitLab Plugin allows cross-channel post injection and phishing via missing channel permission checks in issue API endpoints_

Mattermost Plugins versions =11.8 10.20.11 11.5.7.0 The Mattermost GitLab plugin fails to verify channel permissions when processing API requests with a caller-supplied postid, and fails to validate the weburl parameter against the configured GitLab instance, which allows an authenticated attacke...

Hackers Spend Nearly $7 Million on Expired Domains to Redirect Traffic to Scams and Malware

Threat actors are acquiring expired domains to inherit website traffic and reputation to redirect victims to scams and malware on a large scale. DNS threat intelligence firm Infoblox has given the name dropcatch domains to those that get a second chance, where an expired domain becomes available...

CVE-2026-49826

Concourse is a container-based automation system written in Go. Prior to version 8.2.3, an attacker is able to craft and send a user a URL that will redirect the user from the Concourse web server to any other site. This could be used in a phishing attack to steal user's credentials. This has bee...

CVE-2026-49826 Concourse login flow has an open redirect issue

Concourse is a container-based automation system written in Go. Prior to version 8.2.3, an attacker is able to craft and send a user a URL that will redirect the user from the Concourse web server to any other site. This could be used in a phishing attack to steal user's credentials. This has bee...

EUVD-2026-58716

Concourse is a container-based automation system written in Go. Prior to version 8.2.3, an attacker is able to craft and send a user a URL that will redirect the user from the Concourse web server to any other site. This could be used in a phishing attack to steal user's credentials. This has bee...

CVE-2026-49826 Concourse login flow has an open redirect issue

Concourse is a container-based automation system written in Go. Prior to version 8.2.3, an attacker is able to craft and send a user a URL that will redirect the user from the Concourse web server to any other site. This could be used in a phishing attack to steal user's credentials. This has bee...

CVE-2026-49826

Summary : CVE-2026-49826 affects Concourse prior to version 8.2.3, where an attacker can craft a URL that redirects a user from the Concourse web server to an arbitrary site (open redirect). Root cause / technical detail : The issue is tied to the login flow and is described in sources as a URL/r...

CVE-2025-71405

chi versions before v5.2.2 contain an open redirect vulnerability in the RedirectSlashes middleware function that uses the Host header to construct redirect URLs. Attackers can manipulate the Host header to redirect users to arbitrary hosts, enabling phishing attacks and credential theft...

UBUNTU-CVE-2025-71405

chi versions before v5.2.2 contain an open redirect vulnerability in the RedirectSlashes middleware function that uses the Host header to construct redirect URLs. Attackers can manipulate the Host header to redirect users to arbitrary hosts, enabling phishing attacks and credential theft...

EUVD-2025-210728

chi versions before v5.2.2 contain an open redirect vulnerability in the RedirectSlashes middleware function that uses the Host header to construct redirect URLs. Attackers can manipulate the Host header to redirect users to arbitrary hosts, enabling phishing attacks and credential theft...

CVE-2025-71405

The CVE-2025-71405 entry concerns the chi library prior to v5.2.2. The vulnerability lies in the RedirectSlashes middleware, which uses the Host header to build redirect URLs. An attacker can manipulate the Host header to redirect users to arbitrary hosts, enabling phishing and credential theft. ...

CVE-2025-71405 go-chi chi before v5.2.2 Open Redirect via RedirectSlashes

chi versions before v5.2.2 contain an open redirect vulnerability in the RedirectSlashes middleware function that uses the Host header to construct redirect URLs. Attackers can manipulate the Host header to redirect users to arbitrary hosts, enabling phishing attacks and credential theft...

CVE-2025-71405

chi versions before v5.2.2 contain an open redirect vulnerability in the RedirectSlashes middleware function that uses the Host header to construct redirect URLs. Attackers can manipulate the Host header to redirect users to arbitrary hosts, enabling phishing attacks and credential theft...

EUVD-2026-58500

Budibase before 3.40.0 contains a cross-site request forgery vulnerability in the chat-link handoff endpoint that allows attackers to bind an external chat identity to a victim's account. Attackers can craft a phishing page that auto-submits a POST request with a leaked confirmation token to bind...

CVE-2026-41479

A flaw was found in Authlib, a Python library for building OAuth and OpenID Connect servers. A remote attacker can exploit the OAuth 2.0 authorization endpoint by providing an unsupported response type and a malicious redirect Uniform Resource Identifier URI. This allows the attacker to redirect...