Alt-N MDaemon 20.0.x < 20.0.9 / 21.0.x < 21.0.8 / 21.5.x < 21.5.6 / 22.0.x < 22.0.7 / 23.0.x < 23.0.4 / 23.5.x < 23.5.5 / 24.0.x < 24.0.4 / 24.5.x < 24.5.3 / 25.0.x < 25.0.3 Stored XSS

The remote Windows host is running a version of MDaemon Email Server that is affected by a stored cross-site scripting XSS vulnerability. An attacker can send a specially crafted HTML e-mail message with JavaScript in an img tag. This could allow a remote attacker to load arbitrary JavaScript cod...

CVE-2025-5986

A crafted HTML email using mailbox:/// links can trigger automatic, unsolicited downloads of .pdf files to the user's desktop or home directory without prompting, even if auto-saving is disabled. This behavior can be abused to fill the disk with garbage data e.g. using /dev/urandom on Linux or to...

UBUNTU-CVE-2025-30349

Horde IMP through 6.2.27, as used with Horde Application Framework through 5.2.23, allows XSS that leads to account takeover via a crafted text/html e-mail message with an onerror attribute that may use base64-encoded JavaScript code, as exploited in the wild in March 2025...

SUSE CVE-2020-15562

An issue was discovered in Roundcube Webmail before 1.2.11, 1.3.x before 1.3.14, and 1.4.x before 1.4.7. It allows XSS via a crafted HTML e-mail message, as demonstrated by a JavaScript payload in the xmlns aka XML namespace attribute of a HEAD element when an SVG element exists...

SUSE CVE-2022-3033

If a Thunderbird user replied to a crafted HTML email containing a meta tag, with the meta tag having the http-equiv="refresh" attribute, and the content attribute specifying an URL, then Thunderbird started a network request to that URL, regardless of the configuration to block remote content. I...

DEBIAN-CVE-2022-3033

If a Thunderbird user replied to a crafted HTML email containing a meta tag, with the meta tag having the http-equiv="refresh" attribute, and the content attribute specifying an URL, then Thunderbird started a network request to that URL, regardless of the configuration to block remote content. I...

The vulnerability of the Thunderbird email client, related to errors in processing input data, allows a hacker to execute arbitrary JavaScript code.

The vulnerability of the Thunderbird email client is related to errors in processing input data. Exploiting this vulnerability allows a malicious actor to execute arbitrary JavaScript code by sending a specially crafted HTML email with a meta tag set to “refresh”...

DEBIAN-CVE-2020-15562

An issue was discovered in Roundcube Webmail before 1.2.11, 1.3.x before 1.3.14, and 1.4.x before 1.4.7. It allows XSS via a crafted HTML e-mail message, as demonstrated by a JavaScript payload in the xmlns aka XML namespace attribute of a HEAD element when an SVG element exists...

The vulnerability of the Microsoft Outlook email client, which allows a hacker to replace the information

The vulnerability of the Microsoft Outlook email client is related to lack of access control. Exploiting this vulnerability allows a malicious actor to replace the content of a web page using an email with specially crafted HTML tags...