Abusing with style: Leveraging cascading style sheets for evasion and tracking

Cisco Talos has identified actors abusing Cascading Style Sheets CSS to 1 evade spam filters and detection engines, and 2 track users' actions and preferences. This blog is a follow-up to our previous report on how threat actors could abuse CSS using a technique called "hidden text salting" to...

CVE-2025-2150

The C@il from HGiga has a Stored Cross-Site Scripting XSS vulnerability, allowing remote attackers with regular privileges to send emails containing malicious JavaScript code, which will be executed in the recipient's browser when they view the email...

PT-2025-23501 · Froxlor · Froxlor

Name of the Vulnerable Software and Affected Versions: Froxlor versions prior to 2.2.6 Description: The issue is an HTML Injection vulnerability in the customer account portal, allowing an attacker to inject malicious HTML payloads in the email section. This can lead to phishing attacks, credenti...

CVE-2025-27913

CVE-2025-27913 concerns Passbolt API prior to version 5. The description in multiple sources states that a server misconfiguration during installation (and disregard of Health Check results) allows emails to be sent with a domain name taken from an attacker-controlled HTTP Host header. The CVSS d...

CVE-2025-27156 Tuleap allows content injection via emails sent by the mass emailing features

Tuleap is an Open Source Suite to improve management of software developments and collaboration. The mass emailing features do not sanitize the content of the HTML emails. A malicious user could use this issue to facilitate a phishing attempt or to indirectly exploit issues in the recipients mail...

HTML Injection

leantime/leantime is vulnerable to HTML injection. The vulnerability is due to improper neutralization of HTML tags in users' first names, allowing arbitrary HTML to be injected into emails...

DMARC for PCI DSS 4.0: A Good Practice for Securing Emails

PCI DSS 4.0 encourages the implementation of anti-phishing controls like DMARC! This highlights and reinforces the importance of preventative measures against email fraud, domain spoofing, and phishing in the financial space. While not a mandate or a requirement for PCI DSS compliance, DMARC and...

How AI was used in an advanced phishing campaign targeting Gmail users

In May, 2024, the FBI warned about the increasing threat of cybercriminals using Artificial Intelligence AI in their scams. At the time, FBI Special Agent in Charge Robert Tripp said: “Attackers are leveraging AI to craft highly convincing voice or video messages and emails to enable fraud scheme...

thunderbird security update

An update is available for thunderbird. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Mozilla Thunderbird is a standalone mail and newsgroup client. Security...

CVE-2022-20960

A vulnerability in Cisco AsyncOS Software for Cisco Email Security Appliance ESA could allow an unauthenticated remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to improper handling of certain TLS connections that are processed by an...

CVE-2025-0510

Thunderbird vulnerability: The From address can be displayed incorrectly when the From field uses the invalid group name syntax described in CVE-2024-49040. Affects Thunderbird <128.7 and

CVE-2025-0510 Address of e-mail sender can be spoofed by malicious email

Thunderbird displayed an incorrect sender address if the From field of an email used the invalid group name syntax that is described in CVE-2024-49040. This vulnerability was fixed in Thunderbird 128.7 and Thunderbird 135...

CVE-2025-0510

Thunderbird displayed an incorrect sender address if the From field of an email used the invalid group name syntax that is described in CVE-2024-49040. This vulnerability was fixed in Thunderbird 128.7 and Thunderbird 135...

Account Takeover

causal/oidc is vulnerable to Account Takeover. The vulnerability is due to flaws in the account linking logic, where an attacker can register a public frontend user account with a user's email before the user's first OIDC login, allowing them to hijack the account...

CVE-2024-55929 Mail spoofing

A mail spoofing vulnerability in Xerox Workplace Suite allows attackers to forge email headers, making it appear as though messages are sent from trusted sources...

I have finalized the list of trending vulnerabilities for 2024 according to Positive Technologies

I have finalized the list of trending vulnerabilities for 2024 according to Positive Technologies. Last year, 74 vulnerabilities were classified as trending to compare the scale, just over 40,000 were added to NVD in 2024. All trending vulnerabilities are found in Western commercial products and...

PT-2025-19375 · Unknown +2 · Request-Tracker4 +2

Name of the Vulnerable Software and Affected Versions: request-tracker4 versions affected versions not specified Description: The issue concerns the use of a default OpenSSL cipher, specifically 3DES des3, for encrypting SMIME email. This could potentially lead to security issues due to the...

forgejo -- multiple vulnerabilities

Problem Description: It was possible to use a token sent via email for secondary email validation to reset the password instead. In other words, a token sent for a given action registration, password reset or secondary email validation could be used to perform a different action. It is no longer...

Directory Traversal Vulnerability in Email Security Defense System of Shanghai Shangxun Information Technology Co.

Shanghai Shangxun Information Technology Co., Ltd. is an enterprise mainly engaged in software and information technology service industry. A directory traversal vulnerability exists in the email security defense system of Shanghai Shangxun Information Technology Co. Ltd. that can be exploited by...

CVE-2020-3548

A vulnerability in the Transport Layer Security TLS protocol implementation of Cisco AsyncOS software for Cisco Email Security Appliance ESA could allow an unauthenticated, remote attacker to cause high CPU usage on an affected device, resulting in a denial of service DoS condition. The...