PT-2026-21366

Name of the Vulnerable Software and Affected Versions Isso versions prior to 0afbfe0691ee237963e8fb0b2ee01c9e55ca2144 Description Isso, a lightweight commenting server written in Python and JavaScript, contains a stored Cross-Site Scripting XSS issue. The website and author comment fields are...

CVE-2026-27120

Leafkit is a templating language with Swift-inspired syntax. Prior to 1.4.1, htmlEscaped in leaf-kit will only escape html special characters if the extended grapheme clusters match, which allows bypassing escaping by using an extended grapheme cluster containing both the special html character a...

CVE-2026-27120 Leaf-kit html escaping does not work on characters that are part of extended grapheme cluster

Leafkit is a templating language with Swift-inspired syntax. Prior to 1.4.1, htmlEscaped in leaf-kit will only escape html special characters if the extended grapheme clusters match, which allows bypassing escaping by using an extended grapheme cluster containing both the special html character a...

CVE-2026-27120

Leaf-kit (templating library for Swift) before version 1.4.1 is vulnerable to HTML escaping bypass via extended grapheme clusters in htmlEscaped(), enabling potential XSS in attribute contexts when user-controlled variables are interpolated. The root cause is that htmlEscaped escapes only when th...

CVE-2026-27120

Leafkit is a templating language with Swift-inspired syntax. Prior to 1.4.1, htmlEscaped in leaf-kit will only escape html special characters if the extended grapheme clusters match, which allows bypassing escaping by using an extended grapheme cluster containing both the special html character a...

CVE-2026-27120 Leaf-kit html escaping does not work on characters that are part of extended grapheme cluster

Leafkit is a templating language with Swift-inspired syntax. Prior to 1.4.1, htmlEscaped in leaf-kit will only escape html special characters if the extended grapheme clusters match, which allows bypassing escaping by using an extended grapheme cluster containing both the special html character a...

Leaf-kit html escaping does not work on characters that are part of extended grapheme cluster

Summary htmlEscaped in leaf-kit will only escape html special characters if the extended grapheme clusters match, which allows bypassing escaping by using an extended grapheme cluster containing both the special html character and some additional characters. In the case of html attributes, this c...

GHSA-4HFH-FCH3-5Q7P Leaf-kit html escaping does not work on characters that are part of extended grapheme cluster

Summary htmlEscaped in leaf-kit will only escape html special characters if the extended grapheme clusters match, which allows bypassing escaping by using an extended grapheme cluster containing both the special html character and some additional characters. In the case of html attributes, this c...

Improper Neutralization of Equivalent Special Elements

Overview vapor/leaf-kit is an an expressive, performant, and extensible templating language built for Swift. Affected versions of this package are vulnerable to Improper Neutralization of Equivalent Special Elements in the htmlEscaped function. An attacker can inject malicious HTML or JavaScript...

Leaf-kit html escaping does not work on characters that are part of extended grapheme cluster

htmlEscaped in leaf-kit will only escape html special characters if the extended grapheme clusters match, which allows bypassing escaping by using an extended grapheme cluster containing both the special html character and some additional characters. In the case of html attributes, this can lead ...

PT-2026-20982

Name of the Vulnerable Software and Affected Versions Leafkit versions prior to 1.4.1 Description Leafkit’s htmlEscaped function inadequately escapes HTML special characters when dealing with extended grapheme clusters. This occurs because the function only escapes characters if the extended...

Leaf-kit html escaping does not work on characters that are part of extended grapheme cluster

htmlEscaped in leaf-kit will only escape html special characters if the extended grapheme clusters match, which allows bypassing escaping by using an extended grapheme cluster containing both the special html character and some additional characters. In the case of html attributes, this can lead ...

GHSA-FQX6-693C-F55G LibreNMS has a Stored XSS in Custom OID - unit parameter missing strip_tags()

Summary The unit parameter in Custom OID functionality lacks striptags sanitization while other fields name, oid, datatype are sanitized. The unsanitized value is stored in the database and rendered without HTML escaping, allowing Stored XSS. Details Vulnerable Input Processing...

Graylog Web Interface 跨站脚本漏洞

The Graylog Web Interface is a web interface provided by the American company Graylog. Version 2.2.3 of the Graylog Web Interface contained a cross-site scripting vulnerability. This vulnerability stemmed from insufficient cleaning and escaping of HTML output, which could allow arbitrary JavaScri...

Graylog Web Interface 跨站脚本漏洞

The Graylog Web Interface is a web interface provided by the American company Graylog. Version 2.2.3 of the Graylog Web Interface contained a cross-site scripting vulnerability. This vulnerability stemmed from insufficient cleaning and escaping of HTML output, which could allow arbitrary JavaScri...

Graylog Web Interface 跨站脚本漏洞

The Graylog Web Interface is a web interface provided by the American company Graylog. Version 2.2.3 of the Graylog Web Interface contained a cross-site scripting vulnerability. This vulnerability stemmed from insufficient cleaning and escaping of HTML output, which could allow arbitrary JavaScri...

CVE-2026-24045

Docmost is open-source collaborative wiki and documentation software. From 0.20.0 and before 0.25.0, the public share page functionality in Docmost does not properly HTML-escape page titles before inserting them into meta tags and the title tag. This allows Stored Cross-Site Scripting XSS attacks...

Docmost 安全漏洞

Docmost is an open-source collaborative wiki and documentation software developed by Docmost. Versions of Docmost prior to 0.25.0 contained security vulnerabilities, which were caused by insufficient HTML escape sequences, potentially leading to stored-xss attacks...

Mattermost Confluence plugin doesn't properly escape user-controlled display names in HTML template rendering

Mattermost Confluence plugin version 1.7.0 fails to properly escape user-controlled display names in HTML template rendering which allows authenticated Confluence users with malicious display names to execute arbitrary JavaScript in victim browsers via sending a specially crafted OAuth2 connectio...

Cross-site Scripting (XSS)

Overview craftcms/commerce is a Craft Commerce Affected versions of this package are vulnerable to Cross-site Scripting XSS in the orderHistory.message. An attacker can execute arbitrary scripts in the context of the admin panel by injecting malicious payloads into the status message field, which...