Common Weakness Enumeration

CWE-1336

Allowed

Improper Neutralization of Special Elements Used in a Template Engine

Abstraction: Base · Status: Incomplete

The product uses a template engine to insert or process externally-influenced input, but it does not neutralize or incorrectly neutralizes special elements or syntax that can be interpreted as template expressions or other code directives when processed by the engine.

276 vulnerabilities reference this CWE, most recent first.

CVE-2026-124430 (GCVE-0-2026-124430)

Vulnerability from cvelistv5 – Published: 2026-11-08 13:15 – Updated: 2026-11-08 13:15
VLAI
Title
Craft CMS 5.10.0 before 5.11.2 RCE via app/render-elements Signing Oracle
Summary
Craft CMS from 5.10.0 before 5.11.2 contains a remote code execution vulnerability that allows non-administrator control panel users to obtain HMAC-signed Twig templates via the app/render-elements endpoint. Attackers can submit the signed templated returnUrl as the login redirect parameter, triggering unsandboxed renderObjectTemplate() evaluation and executing OS commands as the PHP worker.
CWE
  • CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
craftcms cms Affected: 5.10.0 , < 5.11.2 (semver)
Unaffected: 5.11.2 (semver)
    cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-23 00:00
Credits
Show details on NVD website

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CVE-2026-123809 (GCVE-0-2026-123809)

Vulnerability from cvelistv5 – Published: 2026-11-09 20:53 – Updated: 2026-11-09 20:53
VLAI
Title
Dynatrace MCP Server: Workflow template injection via create_workflow_for_notification
Summary
Dynatrace MCP Server is an MCP server for Dynatrace Observability. Prior to 2.0.0, the create_workflow_for_notification tool inserts the caller-controlled teamName, problemType, and channel values into a Dynatrace workflow without neutralizing Jinja2 expressions. A caller can place template expressions such as event() in those values, and the workflow engine evaluates them when the persistent workflow runs. When the workflow has a valid Slack connector, the resulting Slack action can disclose event or tenant metadata to an attacker-selected channel; the shipped placeholder connection does not deliver messages by itself. The workflow remains in the tenant after the MCP session and credentials are gone. The isPrivate option defaults to false, making the created workflow tenant-visible unless the caller changes it. Exploitation requires either an MCP prompt-injection path or an operator approving a prompt that displays the template fragment literally. This issue is fixed in version 2.0.0.
CWE
  • CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Assigner
GitHub_M CNA
Impacted products
Show details on NVD website

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CVE-2026-123198 (GCVE-0-2026-123198)

Vulnerability from cvelistv5 – Published: 2026-11-05 18:16 – Updated: 2026-11-05 20:59
VLAI
Title
LMFDB before commit 01829bd Unauthenticated Server-Side Template Injection via /knowledge/render/<ID>
Summary
LMFDB before commit 01829bd contains a server-side template injection vulnerability in the render_knowl function that allows unauthenticated attackers to inject Jinja expressions via request parameters. Attackers can supply crafted query-string values or 'content' data to /knowledge/render/<ID> to reach Python builtins and execute operating system commands as the web application account.
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 20:59 UTC
CWE
  • CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Assigner
VulnCheck CNA
Impacted products
Vendor Product Version
LMFDB LMFDB Affected: 0 , < 01829bd09b692c720aad30c952758a20630573d4 (git)
Create a notification for this product.
Date Public
2026-11-02 00:00
Show details on NVD website

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CVE-2026-123020 (GCVE-0-2026-123020)

Vulnerability from cvelistv5 – Published: 2026-11-05 12:45 – Updated: 2026-11-05 20:44 X_Open Source
VLAI
Title
eosphoros-ai DB-GPT Jinja2 Template __init__.py FileBasedSkill.get_prompt special elements in template engine
Summary
A security vulnerability has been detected in eosphoros-ai DB-GPT up to 0.8.1. The affected element is the function FileBasedSkill.get_prompt of the file packages/dbgpt-core/src/dbgpt/agent/skill/claude_skill/__init__.py of the component Jinja2 Template Handler. The manipulation leads to improper neutralization of special elements used in a template engine. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 0.8.2 is sufficient to fix this issue. The identifier of the patch is a9e7a3c026d114fcfb4ffe3eaf78851a636ded16. It is suggested to upgrade the affected component.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 20:43 UTC
CWE
  • CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
  • CWE-791 - Incomplete Filtering of Special Elements
Assigner
VulDB CNA
Impacted products
Vendor Product Version
eosphoros-ai DB-GPT Affected: 0.8.0
Affected: 0.8.1
Unaffected: 0.8.2
    cpe:2.3:a:eosphoros-ai:db-gpt:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-119144 (GCVE-0-2026-119144)

Vulnerability from cvelistv5 – Published: 2026-10-29 15:58 – Updated: 2026-11-03 16:03
VLAI
Title
Frappe Framework before 15.111.0 and 16.x before 16.21.0 Server-Side Template Injection via Message Fields
Summary
Frappe Framework before 15.111.0 and 16.x before 16.21.0 contains a server-side template injection vulnerability because user-controlled message fields are rendered as templates without neutralization. An authenticated attacker holding a common operational role can inject template expressions that the server evaluates in an unrestricted context.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 16:02 UTC
CWE
  • CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
frappe frappe Affected: 16.0.0 , < 16.21.0 (semver)
Unaffected: 16.21.0 (semver)
Create a notification for this product.
frappe frappe Affected: 0 , < 15.111.0 (semver)
Unaffected: 15.111.0 (semver)
Create a notification for this product.
Date Public
2026-10-15 00:00
Show details on NVD website

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CVE-2026-119085 (GCVE-0-2026-119085)

Vulnerability from cvelistv5 – Published: 2026-11-02 17:37 – Updated: 2026-11-03 16:27
VLAI
Title
Template injection in the publishing component of awslabs Virtual Engineering Workbench
Summary
Improper neutralization of special elements used in a template engine in the publishing component of Amazon Virtual Engineering Workbench (VEW) could allow a remote authenticated third party to run arbitrary code with the permissions of the publishing Lambda's IAM role. This could allow access to data and resources across all tenant projects. The code is reachable through a crafted CloudFormation template body containing template engine directives submitted through the product versioning API. To remediate this issue, users should redeploy from the latest version of awslabs/virtual-engineering-workbench.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 19:08 UTC
CWE
  • CWE-1336 - Improper neutralization of special elements used in a template engine
Assigner
AMZN CNA
Impacted products
Vendor Product Version
AWS virtual-engineering-workbench Affected: 0 , < c146486cec41f5b04fae57e9ce1a7fb40e695615 (git)
    cpe:2.3:a:aws:virtual-engineering-workbench:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Show details on NVD website

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CVE-2026-118803 (GCVE-0-2026-118803)

Vulnerability from cvelistv5 – Published: 2026-10-28 21:11 – Updated: 2026-11-03 13:44
VLAI
Title
Bricks Theme Unauthenticated Dynamic Data Tag Injection via query_result
Summary
Bricks Theme 2.4.3 and before contains an unauthenticated dynamic-data tag injection vulnerability that allows anonymous attackers to control the urlParams object in the query_result REST endpoint, causing the submitted value to be re-parsed as a Bricks dynamic data tag. Attackers can inject tags such as author_meta:user_pass, author_meta:user_email, or cf_coupon_amount to leak post meta and the post author's user record, including the password hash, without authentication.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 13:43 UTC
CWE
  • CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
Bricks Bricks Theme Affected: 0 , < 2.4.4 (semver)
Create a notification for this product.
Date Public
2026-10-28 00:00
Show details on NVD website

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CVE-2026-115938 (GCVE-0-2026-115938)

Vulnerability from cvelistv5 – Published: 2026-10-23 21:58 – Updated: 2026-11-02 15:03
VLAI
Title
Low privilege condition filter escapes Twig sandbox, recovers "securityKey" and reaches RCE
Summary
Craft CMS allows any authenticated control panel user to submit an element-search condition whose element selector is evaluated as a sandboxed Twig object template. Craft’s allowed column filter delegates property lookup to Yii ArrayHelper, outside Twig’s SecurityPolicy. Repeated single-segment lookups therefore bypass the sandbox’s empty property/method allowlists. The vulnerable condition value is ultimately cast to an integer. That does not protect the secret: the template can return author ID 1 when a guessed key character is correct and an impossible ID otherwise. The JSON endpoint returns entries for the first case and an empty array for the second, forming a stable remote character oracle. After recovering GeneralConfig::securityKey, the same user can compute Craft’s generic HMAC wire format offline. Signed parameters such as redirect are then accepted and passed to unsandboxed View::renderObjectTemplate(), where Twig’s string-callable form can invoke native PHP callables. The regression proof uses the harmless substr() callback and observes abcdef becoming cdef; it does not execute an OS command.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 15:02 UTC
CWE
  • CWE-1336 - Improper neutralization of special elements used in a template engine
Assigner
Hackrate CNA
References
Impacted products
Vendor Product Version
craftcms cms Affected: 5.0.0 , < 5.11.2 (semver)
Affected: 4.0.0 , < 4.18.9 (semver)
    cpe:2.3:a:craftcms:cms:*:*:*:*:*:*:*:*
    cpe:2.3:a:craftcms:cms:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-115189 (GCVE-0-2026-115189)

Vulnerability from cvelistv5 – Published: 2026-10-26 12:39 – Updated: 2026-10-26 15:35
VLAI
Summary
A server-side template injection vulnerability exists in the Twig theme rendering sandbox of Mautic. The sandbox introduced to restrict user-uploaded theme templates (the fix for GHSA-9fx4-7cmj-47vg) does not fully enforce its restrictions, allowing a crafted theme template to escape the sandbox. An authenticated user with the core:themes:create permission can upload a malicious theme whose template is later rendered, resulting in execution of arbitrary code on the server with the privileges of the web server process. This allows the attacker to execute operating system commands, read server-side files including configuration files and database credentials, write files, and reach internal services. In default installations the core:themes:create permission is granted to the Administrator role, and in multi-operator setups it may be delegated to other roles. This is an incomplete fix for GHSA-9fx4-7cmj-47vg.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-26 14:47 UTC
CWE
  • CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Assigner
Mautic CNA
Impacted products
Vendor Product Version
Affected: 1.3.0 , < 5.2.12 (semver)
Affected: 6.0.0 , < 6.0.10 (semver)
Affected: 7.0.0 , < 7.2.2 (semver)
Show details on NVD website

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CVE-2026-110593 (GCVE-0-2026-110593)

Vulnerability from cvelistv5 – Published: 2026-10-14 14:16 – Updated: 2026-10-16 11:38
VLAI
Title
BottleCRM through 1.14.5 Server-Side Template Injection via Account Email create_mail
Summary
BottleCRM through 1.14.5 contains a server-side template injection vulnerability in the send_email Celery task, which compiles the user-supplied AccountEmail message_body with django.template.Template(). Authenticated organization members can submit template tags through POST /api/accounts/<id>/create_mail/ to disclose the rendering context and loaded Python modules, or block the shared Celery worker with nested loops.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 14:49 UTC
CWE
  • CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Assigner
VulnCheck CNA
Impacted products
Vendor Product Version
MicroPyramid BottleCRM Affected: 0 , ≤ 1.14.5 (custom)
    cpe:2.3:a:micropyramid:django_crm:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-14 00:00
Show details on NVD website

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Mitigation
Architecture and Design

Choose a template engine that offers a sandbox or restricted mode, or at least limits the power of any available expressions, function calls, or commands.

Mitigation
Implementation

Use the template engine's sandbox or restricted mode, if available.

No CAPEC attack patterns related to this CWE.