CVE-2021-25375

Using predictable index for attachments in Samsung Email prior to version 6.1.41.0 allows remote attackers to get attachments of another emails when users open the malicious attachment...

CVE-2009-1286

The IMAP task in the server in IBM Lotus Domino 8.0.2 before FP1 IF1 and 8.5 before IF3 allows remote attackers to cause a denial of service daemon crash via a MIME e-mail message with RFC822 attachments aka blobs containing malformed root entities...

CVE-2001-1542

NAI WebShield SMTP 4.5 and possibly 4.5 MR1a does not filter improperly MIME encoded email attachments, which could allow remote attackers to bypass filtering and possibly execute arbitrary code in email clients that process the invalid attachments...

CVE-2025-3932

It was possible to craft an email that showed a tracking link as an attachment. If the user attempted to open the attachment, Thunderbird automatically accessed the link. The configuration to block remote content did not prevent that. Thunderbird has been fixed to no longer allow access to web...

CVE-2025-3909 JavaScript Execution via Spoofed PDF Attachment and file:/// Link

Thunderbird's handling of the X-Mozilla-External-Attachment-URL header can be exploited to execute JavaScript in the file:/// context. By crafting a nested email attachment message/rfc822 and setting its content type to application/pdf, Thunderbird may incorrectly render it as HTML when opened,...

Sematell ReplyOne 安全漏洞

Sematell ReplyOne is an artificial intelligence-based reply management software from Sematell. A security vulnerability exists in Sematell ReplyOne version 7.4.3.0 that stems from the presence of cross-site scripting via ReplyDesk email attachment names...

CVE-2025-3523

When an email contains multiple attachments with external links via the X-Mozilla-External-Attachment-URL header, only the last link is shown when hovering over any attachment. Although the correct link is used on click, the misleading hover text could trick users into downloading content from...

CVE-2025-3523

When an email contains multiple attachments with external links via the X-Mozilla-External-Attachment-URL header, only the last link is shown when hovering over any attachment. Although the correct link is used on click, the misleading hover text could trick users into downloading content from...

CVE-2025-3523

When an email contains multiple attachments with external links via the X-Mozilla-External-Attachment-URL header, only the last link is shown when hovering over any attachment. Although the correct link is used on click, the misleading hover text could trick users into downloading content from...

UBUNTU-CVE-2025-3523

When an email contains multiple attachments with external links via the X-Mozilla-External-Attachment-URL header, only the last link is shown when hovering over any attachment. Although the correct link is used on click, the misleading hover text could trick users into downloading content from...

CVE-2025-3523 User Interface (UI) Misrepresentation of attachment URL

When an email contains multiple attachments with external links via the X-Mozilla-External-Attachment-URL header, only the last link is shown when hovering over any attachment. Although the correct link is used on click, the misleading hover text could trick users into downloading content from...

CVE-2025-3523

Vulnerability in Thunderbird where the X-Mozilla-External-Attachment-URL header is processed such that only the last external link is shown on hover for multi-attachment messages. The hover text can mislead users into downloading content from untrusted sources, while the correct link is used on c...

CVE-2025-3523

When an email contains multiple attachments with external links via the X-Mozilla-External-Attachment-URL header, only the last link is shown when hovering over any attachment. Although the correct link is used on click, the misleading hover text could trick users into downloading content from...

CVE-2025-3522

Summary of CVE-2025-3522 (Thunderbird) : Thunderbird improperly processes the X-Mozilla-External-Attachment-URL header used for external attachments. When opening an email, Thunderbird fetches the URL to determine file size and may navigate to it when attaching is clicked. The URL is not validate...

CVE-2025-3522 Leak of hashed Window credentials via crafted attachment URL

Thunderbird processes the X-Mozilla-External-Attachment-URL header to handle attachments which can be hosted externally. When an email is opened, Thunderbird accesses the specified URL to determine file size, and navigates to it when the user clicks the attachment. Because the URL is not validate...

PT-2025-16353 · Mozilla +10 · Thunderbird +10

Name of the Vulnerable Software and Affected Versions: Thunderbird versions prior to 137.0.2 Thunderbird versions prior to 128.9.2 Description: The issue arises when an email contains multiple attachments with external links via the X-Mozilla-External-Attachment-URL header. In such cases, only th...

QR codes sent in attachments are the new favorite for phishers

Recently we’ve been seeing quite a few phishing campaigns using QR codes in email attachments. The lure and the targets are varied, but the use of a QR code to get someone to visit the phishing site is fast becoming a preferred method for cybercriminals. There are several reasons why cybercrimina...

5 Unexpected Devices You Didn’t Know Could Spread Malware

When you think of malware, your mind probably jumps to malicious downloads or email attachments. But it turns…...

Linux Distros Unpatched Vulnerability : CVE-2020-11879

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An issue was discovered in GNOME Evolution before 3.35.91. By using the proprietary non-RFC6068 mailto?attach=... parameter, a website or other source of mailto...

CVE-2024-20401

A vulnerability in the content scanning and message filtering features of Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to overwrite arbitrary files on the underlying operating system. This vulnerability is due to improper handling of email attachments when file...