DOMPurify IN_PLACE Sanitization Bypass via Attached Shadow Root Inside <template>.content

If the HTML you give it contains a element, and inside that template there's an element with a shadow DOM attached to it, DOMPurify quietly skips over the shadow contents. Whatever the attacker put in there - an image with an onerror handler, a link with a javascript: URL, even a full script -...

NPM: DOMPurify IN_PLACE Sanitization Bypass via Attached Shadow Root Inside <template>.content

NPM: DOMPurify INPLACE Sanitization Bypass via Attached Shadow Root Inside .content vulnerability discovered by ? in WordPress Npm dompurify versions = 3.4.6...

GHSA-RP9W-3FW7-7CWQ DOMPurify IN_PLACE Sanitization Bypass via Attached Shadow Root Inside <template>.content

If the HTML you give it contains a element, and inside that template there's an element with a shadow DOM attached to it, DOMPurify quietly skips over the shadow contents. Whatever the attacker put in there - an image with an onerror handler, a link with a javascript: URL, even a full script -...

DOMPurify: Cross-realm IN_PLACE sanitization leaves executable markup intact via realm-bound `instanceof` checks

Cross-realm INPLACE sanitization leaves executable markup intact via realm-bound instanceof checks CWE: CWE-79 XSS — Improper Neutralization of Input During Web Page Generation via CWE-693 Protection Mechanism Failure — realm-bound instanceof checks fail-open on foreign-realm DOM nodes and CWE-50...

CVE-2026-9308

Firefox for iOS Reader View replaced page content in its HTML template before replacing other internal placeholders. A malicious page could include a placeholder string that was later substituted with JSON-LD data, potentially resulting in arbitrary JavaScript execution. This vulnerability was...

CVE-2026-44884 Portainer: Missing authorization on custom template file endpoint exposes template content

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8 and 2.39.1, a missing authorization vulnerability in the Custom Template file endpoint GET...

CVE-2026-44884 Portainer: Missing authorization on custom template file endpoint exposes template content

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8 and 2.39.1, a missing authorization vulnerability in the Custom Template file endpoint GET...

EUVD-2026-33058

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8 and 2.39.1, a missing authorization vulnerability in the Custom Template file endpoint GET...

CVE-2026-44884

Portainer CVE-2026-44884 involves a missing authorization check on the Custom Template file endpoint (GET /api/custom_templates/{id}/file). From 2.33.0 up to 2.33.8 and 2.39.0 up to 2.39.1, any authenticated user could read the file content of any custom template by enumerating numeric IDs, poten...

CVE-2026-44884 Portainer: Missing authorization on custom template file endpoint exposes template content

Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33.8 and 2.39.1, a missing authorization vulnerability in the Custom Template file endpoint GET...

CVE-2026-9498

A vulnerability has been found in Dromara lamp-cloud up to 5.6.2. Impacted is the function GroovyClassLoader.parseClass of the component Message Template Handler. Such manipulation of the argument DefMsgTemplate.content leads to improper neutralization of special elements used in a template engin...

PT-2026-43117

A vulnerability has been found in Dromara lamp-cloud up to 5.6.2. Impacted is the function GroovyClassLoader.parseClass of the component Message Template Handler. Such manipulation of the argument DefMsgTemplate.content leads to improper neutralization of special elements used in a template engin...

CVE-2026-8740 Sanluan PublicCMS templateResult API TemplateResultDirective.java execute special elements used in a template engine

A flaw has been found in Sanluan PublicCMS 5.202506.d. The impacted element is the function execute of the file publiccms-core/src/main/java/com/publiccms/views/directive/tools/TemplateResultDirective.java of the component templateResult API. This manipulation of the argument templateContent caus...

PublicCMS 安全漏洞

PublicCMS is an open-source content management system CMS developed by PublicCMS Company in China using the Java language. Version Sanluan PublicCMS 5.202506.d contains a security vulnerability. This vulnerability stems from the improper handling of the templateContent parameter in the execute...

CVE-2026-42461

Arcane (Huma backend) has an unauthenticated information disclosure vulnerability prior to version 1.18.0. Four GET endpoints under /api/templates* (list, all, specific, and content) were registered without any Security requirement, enabling unauthenticated network clients to read full Compose YA...

CVE-2026-42461 Arcane Vulnerable to Unauthenticated Disclosure of Custom Compose Template Content (incl. `.env` secrets)

Arcane is an interface for managing Docker containers, images, networks, and volumes. Prior to version 1.18.0, four GET endpoints under /api/templates in Arcane's Huma backend are registered without any Security requirement, allowing any unauthenticated network client to list and read the full...

Unity Linux 20.1050e / 20.1070e Security Update: python-jinja2 (UTSA-2026-017337)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017337 advisory. Jinja is an extensible templating engine. In versions on the 3.x branch prior to 3.1.5, a bug in the Jinja compiler allows an attacker that controls both the content...

Arcane Vulnerable to Unauthenticated Disclosure of Custom Compose Template Content (incl. `.env` secrets)

Summary Four GET endpoints under /api/templates in Arcane's Huma backend are registered without any Security requirement, allowing any unauthenticated network client to list and read the full Compose YAML and .env content of every custom template stored in the instance. Because Arcane's UI expose...

Memory Limit Bypass

LiquidJS is vulnerable to Memory Limit Bypass. The vulnerability is due to the replace filter incorrectly accounting for memory usage when the memoryLimit option is enabled, where an attacker who controls template content can bypass the memoryLimit DoS protection with approximately 2,500x...

Directory Traversal

Overview liquidjs is an A simple, expressive, safe and Shopify compatible template engine in pure JavaScript. Affected versions of this package are vulnerable to Directory Traversal via the Loader.candidates resolution when require.resolve is used as a fallback; an attacker can read arbitrary...