python: Python: Command-line option injection in webbrowser.open() via crafted URLs

A flaw was found in Python. The webbrowser.open API, used to launch web browsers, does not properly sanitize input. This allows a remote attacker to craft a malicious URL containing leading dashes. When such a URL is opened, certain web browsers may interpret these dashes as command-line options,...

Use of Web Browser Cache Containing Sensitive Information

Overview @astrojs/node is a Deploy your site to a Node.js server Affected versions of this package are vulnerable to Use of Web Browser Cache Containing Sensitive Information via the serve-static.ts component. An attacker can cause legitimate users to receive persistent error responses for static...

[SECURITY] [DLA 4546-1] firefox-esr security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-4546-1 [email protected] https://www.debian.org/lts/security/ Emilio Pozuelo Monfort April 23, 2026 https://wiki.debian.org/LTS -...

[SECURITY] Fedora 42 Update: chromium-147.0.7727.101-1.fc42

Chromium is an open-source web browser, powered by WebKit Blink...

PT-2026-34784

OpenClaw before 2026.3.22 contains an access control bypass vulnerability in the allowProfiles feature that allows attackers to circumvent profile restrictions through persistent profile mutation and runtime profile selection. Remote attackers can exploit this by manipulating browser proxy profil...

PT-2026-34794

Name of the Vulnerable Software and Affected Versions Certain production printers and office/small office multifunction printers affected versions not specified Description A flaw in the browser-based remote management interface allows an administrator to access sensitive information on the devic...

PT-2026-38092

Name of the Vulnerable Software and Affected Versions Google Chrome versions prior to 148.0.7778.96 Description An out of bounds read and write issue in V8 allows a remote attacker to execute arbitrary code inside a sandbox by using a crafted HTML page. Recommendations Update to version...

The vulnerability of the JavaScript script handler in Google Chrome’s V8 engine allows attackers to gain unauthorized access to protected information.

The vulnerability of the JavaScript script handler in Google Chrome’s V8 engine is related to the execution of operations outside of the buffer in memory. Exploiting this vulnerability can allow an attacker to gain unauthorized access to protected information through a specially created HTML page...

OpenC3 COSMOS is Vulnerable to Self-XSS Through the Command Sender

Summary The Command Sender UI uses an unsafe eval function on array-like command parameters, which allows a user-supplied payload to execute in the browser when sending a command. This creates a self-XSS risk because an attacker can trigger their own script execution in the victim’s session, if...

GHSA-FFQ5-QPVF-XQ7X OpenC3 COSMOS is Vulnerable to Self-XSS Through the Command Sender

Summary The Command Sender UI uses an unsafe eval function on array-like command parameters, which allows a user-supplied payload to execute in the browser when sending a command. This creates a self-XSS risk because an attacker can trigger their own script execution in the victim’s session, if...

CVE-2026-41468

Beghelli Sicuro24 SicuroWeb uses AngularJS 1.5.2, an end-of-life component, which together with in-app template injection enables sandbox escape and arbitrary JavaScript execution in operator browser sessions. This can lead to session hijacking, DOM manipulation, and persistent browser compromise...

Cross-site Scripting (XSS)

Overview ci4-cms-erp/ci4ms is a composer create-project ci4-cms-erp/ci4ms Affected versions of this package are vulnerable to Cross-site Scripting XSS through the filename field in the backup management module. An attacker can gain unauthorized access to user accounts and escalate privileges by...

CVE-2026-3254

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.11 before 18.11.1 that under certain conditions could have allowed an authenticated user to load unauthorized content into another user's browser due to improper input validation in the Mermaid sandbox...

CVE-2026-5816

CVE-2026-5816 affects GitLab CE/EE prior to 18.10.4 and prior to 18.11.1, with an issue in path validation that could allow an unauthenticated user to execute arbitrary JavaScript in a user’s browser session. GitLab has released patches in versions 18.10.4 and 18.11.1 to remediate this. The vulne...

CVE-2026-5816

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.10 before 18.10.4 and 18.11 before 18.11.1 that could have allowed an unauthenticated user to execute arbitrary JavaScript in a user's browser session due to improper path validation under certain conditions...

python: Python: Command-line option injection in webbrowser.open() via crafted URLs

A flaw was found in Python. The webbrowser.open API, used to launch web browsers, does not properly sanitize input. This allows a remote attacker to craft a malicious URL containing leading dashes. When such a URL is opened, certain web browsers may interpret these dashes as command-line options,...

Malicious trading website drops malware that hands your browser to attackers

During our threat hunting, we found a campaign using the same malware loader from our previous research to deliver a different threat: Needle Stealer , data-stealing malware designed to quietly harvest sensitive information from infected devices, including browser data, login sessions, and...

CVE-2026-6848

A flaw was found in Red Hat Quay. When Red Hat Quay requests password re-verification for sensitive operations, such as token generation or robot account creation, the re-authentication prompt can be bypassed. This allows a user with a timed-out session, or an attacker with access to an idle...

DeepL Chrome browser extension vulnerable to cross-site scripting

Overview DeepL Chrome browser extension contains the following vulnerability. Cross-site scripting CWE-79 - CVE-2026-40451 This vulnerability was reported by the researchers below and JPCERT/CC coordinated with the developer. Junki Yuasa of Cybozu, Inc. reported this vulnerability to JPCERT/CC...

CVE-2026-40451

DeepL Chrome browser extension versions from v1.22.0 to v.1.23.0 contain a cross-site scripting vulnerability, which allows an attacker to execute arbitrary script in a user's browser, and inject malicious HTML into web pages viewed by the user...