CVE-2021-43543: Improper Neutralization of Input During Web Page Generation

Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content. This vulnerability affects Thunderbird 91.4.0, Firefox ESR 91.4.0, and Firefox 95...

RHEL 7 : firefox (RHSA-2021:5014)

The remote Redhat Enterprise Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:5014 advisory. Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox...

Mozilla Firefox < 95.0

The version of Firefox installed on the remote macOS or Mac OS X host is prior to 95.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-52 advisory. - Mozilla developers and community members Julian Hector, Randell Jesup, Gabriele Svelto, Tyson Smith, Christia...

Security Vulnerabilities fixed in Firefox ESR 91.4.0 — Mozilla

Under certain circumstances, asynchronous functions could have caused a navigation to fail but expose the target URL. An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory leading to a potentially exploitable crash. By misusing a race in our...

GHSA-W7FJ-336R-VW49 Cross-Site Scripting vulnerability in @backstage/plugin-auth-backend

Impact This vulnerability allows a malicious actor to trick another user into visiting a vulnerable URL that executes an XSS attack. This attack can potentially allow the attacker to exfiltrate access tokens or other secrets from the user's browser. The default CSP does prevent this attack, but i...

CVE-2021-43776

Backstage is an open platform for building developer portals. In affected versions the auth-backend plugin allows a malicious actor to trick another user into visiting a vulnerable URL that executes an XSS attack. This attack can potentially allow the attacker to exfiltrate access tokens or other...

CVE-2021-43776 XSS vulnerability in @backstage/plugin-auth-backend

Backstage is an open platform for building developer portals. In affected versions the auth-backend plugin allows a malicious actor to trick another user into visiting a vulnerable URL that executes an XSS attack. This attack can potentially allow the attacker to exfiltrate access tokens or other...

CVE-2021-43776

CVE-2021-43776 is a Cross-Site Scripting vulnerability in the Backstage project, specifically within the auth-backend plugin. Affected versions allow an attacker to trick a user into visiting a vulnerable URL, enabling an XSS attack that could exfiltrate access tokens or other secrets from the us...

Mozilla Firefox Security Advisory (MFSA2014-86) - Linux

This host is missing a security update for Mozilla Firefox. Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; y...

Mozilla Firefox Security Advisory (MFSA2015-118) - Linux

This host is missing a security update for Mozilla Firefox. Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; y...

Mozilla Firefox Security Advisory (MFSA2015-91) - Linux

This host is missing a security update for Mozilla Firefox. Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; y...

DDoS attacks in Q3 2021

News overview Q3 2021 brought two new DDoS attack vectors, potentially posing a serious threat, including for major web resources. A team of researchers from the University of Maryland and the University of Colorado Boulder found a way to spoof the victims IP address over TCP. To date,...

Mozilla Firefox Security Advisory (MFSA2016-18) - Linux

This host is missing a security update for Mozilla Firefox. Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; y...

Mozilla Firefox Security Advisory (MFSA2016-45) - Linux

This host is missing a security update for Mozilla Firefox. Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; y...

Mozilla Firefox Security Advisory (MFSA2016-17) - Linux

This host is missing a security update for Mozilla Firefox. Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; y...

Mozilla Firefox Security Advisory (MFSA2016-60) - Linux

This host is missing a security update for Mozilla Firefox. Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; y...

in bookstackapp/bookstack

Description The image extension validation service for Base64 image extraction in new Bookstack version is flawed as it uses the vulnerable trim function. This allows attackers to upload malicious files with broken extension, such as pngr, and browsers will interpret broken extension hosted on th...

in fisharebest/webtrees

Description In fix commit https://github.com/fisharebest/webtrees/commit/fc904122e0c1b55f274bc4c8cd883c266176e34e, the fix was to set CSP to script-src in HTML files to none. Webtrees by default has X-Frame-Options headers to prevent clickjacking, but since X-Frame-Options: SAMEORIGIN, it is...

Mattermost Cross-Site Scripting Vulnerability (CNVD-2022-25230)

Mattermost is an open source collaboration platform from Mattermost, Inc. A security vulnerability exists in Mattermost 5.38 and earlier versions, which stems from the application's failure to adequately clean up clipboard content and could be exploited to inject arbitrary Web scripts into produc...

Cross-site Scripting in Mattermost

Mattermost 5.38 and earlier fails to sufficiently sanitize clipboard contents, which allows a user-assisted attacker to inject arbitrary web script in product deployments that explicitly disable the default CSP...