Design/Logic Flaw

Nextcloud is an open-source, self-hosted productivity platform The Nextcloud Mail application prior to versions 1.10.4 and 1.11.0 does by default not render images in emails to not leak the read state or user IP. The privacy filter failed to filter images with a relative protocol. It is recommend...

CVE-2021-39220

Nextcloud is an open-source, self-hosted productivity platform The Nextcloud Mail application prior to versions 1.10.4 and 1.11.0 does by default not render images in emails to not leak the read state or user IP. The privacy filter failed to filter images with a relative protocol. It is recommend...

CVE-2021-39220 Bypass of image blocking in Nextcloud Mail

Nextcloud is an open-source, self-hosted productivity platform The Nextcloud Mail application prior to versions 1.10.4 and 1.11.0 does by default not render images in emails to not leak the read state or user IP. The privacy filter failed to filter images with a relative protocol. It is recommend...

CVE-2021-39220

Nextcloud is an open-source, self-hosted productivity platform The Nextcloud Mail application prior to versions 1.10.4 and 1.11.0 does by default not render images in emails to not leak the read state or user IP. The privacy filter failed to filter images with a relative protocol. It is recommend...

CVE-2021-39220

Summary: CVE-2021-39220 affects the Nextcloud Mail application. The issue is an information-disclosure due to a privacy filter that fails to filter images using relative protocols, allowing leakage of read state or user IP. Affected versions: Nextcloud Mail prior to 1.10.4 and 1.11.0. Root cause:...

Bypass of image blocking in Nextcloud Mail

None...

NextCloud input validation error vulnerability

Nextcloud is a set of open source self-hosted file synchronization and sharing communication applications platform from Germany-based Nextcloud. Nextcloud Mail applications prior to versions 1.10.4 and 1.11.0 are vulnerable to an information disclosure vulnerability that stems from a privacy filt...

CVE-2021-39220: Improper Input Validation

Nextcloud is an open-source, self-hosted productivity platform The Nextcloud Mail application prior to versions 1.10.4 and 1.11.0 does by default not render images in emails to not leak the read state or user IP. The privacy filter failed to filter images with a relative protocol. It is recommend...

CVE-2020-36498: Improper Neutralization of Input During Web Page Generation

Macrob7 Macs Framework Content Management System - 1.14f contains a cross-site scripting XSS vulnerability in the account reset function, which allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the e-mail input field...

PT-2021-12067

Name of the Vulnerable Software and Affected Versions: Macrob7 Macs Framework Content Management System version 1.14f Description: The issue allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the e-mail input field, specifically in the account reset function. This...

CVE-2021-28975

WP Mailster 1.6.18.0 allows XSS when a victim opens a mail server's details in the mstservers page, for a crafted serverhost, servername, or connectionparameter parameter...

[SECURITY] Fedora 34 Update: thunderbird-91.2.0-1.fc34

Mozilla Thunderbird is a standalone mail and newsgroup client...

CLSA-2021-1634573745 Fix of CVE: CVE-2020-25275, CVE-2020-12100

CVE-2020-12100: Resource exhaustion via deeply nested MIME parts - CVE-2020-25275: Denial of service via mail MIME parsing...

OESA-2021-1382 curl security update

cURL is a computer software project providing a library libcurl and command-line tool curl for transferring data using various protocols. Security Fixes: When curl = 7.20.0 and = 7.78.0 connects to an IMAP or POP3 server to retrieve data using STARTTLS to upgrade to TLS security, the server can...

Mozilla: Downgrade attack on SMTP STARTTLS connections

Thunderbird ignored the configuration to require STARTTLS security for an SMTP connection. A MITM could perform a downgrade attack to intercept transmitted messages, or could take control of the authenticated session to execute SMTP commands chosen by the MITM. If an unprotected authentication...

Mozilla: Downgrade attack on SMTP STARTTLS connections

Thunderbird ignored the configuration to require STARTTLS security for an SMTP connection. A MITM could perform a downgrade attack to intercept transmitted messages, or could take control of the authenticated session to execute SMTP commands chosen by the MITM. If an unprotected authentication...

Mozilla Thunderbird security vulnerabilities

Mozilla Thunderbird is a suite of email client software from the Mozilla Foundation that is separate from the Mozilla Application Suite. The software supports IMAP and POP email protocols as well as HTML email formats. Mozilla Thunderbird is vulnerable to an information disclosure vulnerability...

MGASA-2021-0464 Updated fail2ban packages fix security vulnerability

fail2ban is a daemon to ban hosts that cause multiple authentication errors. In versions 0.9.7 and prior, 0.10.0 through 0.10.6, and 0.11.0 through 0.11.2, there is a vulnerability that leads to possible remote code execution in the mailing action mail-whois. Command mail from mailutils package...

CVE-2021-31986

User controlled parameters related to SMTP notifications are not correctly validated. This can lead to a buffer overflow resulting in crashes and data leakage...

CVE-2021-31988

A user controlled parameter related to SMTP test functionality is not correctly validated making it possible to add the Carriage Return and Line Feed CRLF control characters and include arbitrary SMTP headers in the generated test email...