Common Weakness Enumeration
CWE-1336
AllowedImproper 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.
476 vulnerabilities reference this CWE, most recent first.
CVE-2026-103540 (GCVE-0-2026-103540)
Vulnerability from cvelistv5 – Published: 2026-10-01 05:15 – Updated: 2026-10-01 19:10
VLAI
EPSS
VEX
Title
formtools.org Form Tools Client Settings Clients.class.php updateClientSettingsTab special elements in template engine
Summary
A security vulnerability has been detected in formtools.org Form Tools up to 3.1.1. This vulnerability affects the function Clients::updateClientSettingsTab of the file global/code/Clients.class.php of the component Client Settings. The manipulation of the argument page_titles leads to improper neutralization of special elements used in a template engine. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 19:09 UTC
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/412350 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/412350/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-103540 | third-party-advisory |
| https://vuldb.com/submit/957845 | third-party-advisory |
| https://github.com/formtools/core/issues/956 | issue-tracking |
| https://github.com/wawyw/cve_report/blob/main/for… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| formtools.org | Form Tools |
Affected:
3.1.0
Affected: 3.1.1 cpe:2.3:a:form_tools:form_tools:*:*:*:*:*:*:*:* |
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CVE-2026-102771 (GCVE-0-2026-102771)
Vulnerability from cvelistv5 – Published: 2026-09-29 22:00 – Updated: 2026-09-30 14:01
VLAI
EPSS
VEX
Title
Naichen ThinkCMF Email Template MailController.php templatePut special elements in template engine
Summary
A security vulnerability has been detected in Naichen ThinkCMF up to 8.0.7. Affected by this issue is the function MailController::templatePut of the file cmf-api/src/admin/controller/MailController.php of the component Email Template. The manipulation leads to improper neutralization of special elements used in a template engine. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 14:01 UTC
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/411468 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/411468/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-102771 | third-party-advisory |
| https://vuldb.com/submit/943081 | third-party-advisory |
| https://github.com/coolcj-stack/ThinkCMF-v8.0.1-S… | exploit |
Impacted products
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CVE-2026-102142 (GCVE-0-2026-102142)
Vulnerability from cvelistv5 – Published: 2026-09-30 20:10 – Updated: 2026-10-01 15:28
VLAI
EPSS
VEX
Title
Kiteworks Core Remote Code Execution through Server-Side Template Injection
Summary
A system notification template on the Kiteworks appliance was rendered by a template engine that evaluated expressions contained in the stored template body. An authenticated System Administrator could potentially store a crafted template that executed operating-system commands on the appliance when the notification was next sent.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 15:14 UTC
CWE
- CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
Date Public
2026-09-30 00:00
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CVE-2026-97359 (GCVE-0-2026-97359)
Vulnerability from cvelistv5 – Published: 2026-09-24 13:28 – Updated: 2026-09-29 02:44 X_Open Source Unsupported When Assigned
VLAI
EPSS
VEX
Title
HFS2 2.4.0 RCE via Multipart Upload Filename Template Injection
Summary
HFS2 version 2.4.0 and earlier contains a template injection vulnerability in the multipart upload handler that allows unauthenticated attackers to achieve remote code execution by embedding malicious template syntax in a filename. Attackers can craft a filename containing a closing template quoting sequence followed by an exec macro, which bypasses the authorization check in the dispatcher to execute arbitrary commands on the underlying host system.
Severity
10 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 02:44 UTC
CWE
- CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/wgetnz/hfs2/blob/master/adviso… | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/hfs2-rce-via… | third-party-advisory |
Impacted products
Date Public
2026-09-24 00:00
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CVE-2026-94109 (GCVE-0-2026-94109)
Vulnerability from cvelistv5 – Published: 2026-09-20 11:33 – Updated: 2026-09-26 13:30
VLAI
EPSS
VEX
Title
openEQUELLA < 2026.1.0 Authenticated Stored SSTI via FreemarkerPortletRenderer
Summary
openEQUELLA before 2026.1.0 contains an authenticated stored server-side template injection vulnerability in FreemarkerPortletRenderer.renderHtml() that allows any authenticated non-guest user to achieve remote code execution by storing a malicious FreeMarker payload through a POST request to the RemotePortletService invoker endpoint. The markup field from stored portlet configuration is passed directly to custFactory.createResult() without a TemplateClassResolver restriction or FreeMarker sandboxing in BasicConfiguration, leaving built-ins such as ?new and freemarker.template.utility.Execute available, causing the payload to execute in the application server process context when any user renders a dashboard containing the affected portlet.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 11:57 UTC
CWE
- CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://blog.evan.lat/posts/openeq | technical-descriptionexploit |
| https://github.com/openequella/openEQUELLA/commit… | patch |
| https://github.com/openequella/openEQUELLA/releas… | release-notes |
| https://www.vulncheck.com/advisories/openequella-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| openequella | openEQUELLA |
Affected:
0 , < 2026.1.0
(semver)
Unaffected: 2026.1.0 (semver) |
Date Public
2026-07-23 00:00
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CVE-2026-92982 (GCVE-0-2026-92982)
Vulnerability from cvelistv5 – Published: 2026-10-15 15:36 – Updated: 2026-10-16 14:19
VLAI
EPSS
VEX
Title
Ansible-operator-plugins: ansible operator plugins: arbitrary code execution via jinja2 template injection
Summary
A flaw was found in Ansible Operator Plugins. A low-privileged Kubernetes user can exploit a Jinja2 template injection vulnerability by crafting malicious custom resource (CR) specification values. These values are processed by Ansible without proper sanitization, allowing embedded Jinja2 expressions to be executed within the operator pod. This can lead to arbitrary code execution and privilege escalation, granting the attacker control over the operator's service account with cluster-wide permissions.
Severity
8.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 03:56 UTC
CWE
- CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-92982 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2522227 | issue-trackingx_refsource_REDHAT |
Impacted products
12 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Migration Toolkit for Applications 8 |
cpe:/a:redhat:migration_toolkit_applications:8
|
|
| Red Hat | Migration Toolkit for Containers |
cpe:/a:redhat:rhmt:1
|
|
| Red Hat | Migration Toolkit for Virtualization |
cpe:/a:redhat:migration_toolkit_virtualization:2
|
|
| Red Hat | OpenShift Service Mesh 3 |
cpe:/a:redhat:service_mesh:3
|
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 |
cpe:/a:redhat:acm:2
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
|
| Red Hat | Red Hat OpenShift Virtualization 4 |
cpe:/a:redhat:container_native_virtualization:4
|
|
| Red Hat | Red Hat OpenStack Platform 16.2 |
cpe:/a:redhat:openstack:16.2
|
|
| Red Hat | Red Hat OpenStack Platform 17.1 |
cpe:/a:redhat:openstack:17.1
|
|
| Red Hat | Red Hat OpenStack Platform 18.0 |
cpe:/a:redhat:openstack:18.0
|
|
| Red Hat | Service Telemetry Framework 1.5 |
cpe:/a:redhat:stf:1.5
|
Date Public
2026-10-15 13:33
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CVE-2026-92592 (GCVE-0-2026-92592)
Vulnerability from cvelistv5 – Published: 2026-09-16 21:46 – Updated: 2026-09-17 19:23
VLAI
EPSS
VEX
Title
Craft CMS before 4.18.6 Remote Code Execution via signed cookie
Summary
Craft CMS 4.8.0 through 4.18.5 and 5.0.0 through 5.10.12 sign an authenticated user's attacker-controlled license-shun cookie with the same key and format used to validate signed redirect parameters, because the HMAC signature is not bound to its purpose (Yii's cookieValidationKey is derived from the same Craft securityKey used for signed request parameters). An authenticated, non-administrator user (Control Panel access is not required) can set the cookie via the license-shun endpoint and transplant the signed envelope into the redirect parameter; on a successful login, Craft validates the signature and renders the authenticated bytes as an unsandboxed Twig template, where Twig's map filter accepts a string callback and allows PHP system() to execute arbitrary operating-system commands as the web-server user. Exploitation requires an account using password authentication without active 2FA, the default request configuration, and availability of PHP system(). The issue is fixed in 4.18.6 and 5.10.13.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 18:57 UTC
CWE
- CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/craftcms/cms/security/advisori… | vendor-advisory |
| https://www.vulncheck.com/advisories/craft-cms-be… | third-party-advisory |
Impacted products
Date Public
2026-09-01 00:00
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CVE-2026-91925 (GCVE-0-2026-91925)
Vulnerability from cvelistv5 – Published: 2026-09-15 11:00 – Updated: 2026-09-24 14:22
VLAI
EPSS
VEX
Title
Polyaxon through 2.16.4 Server-Side Template Injection via Unsandboxed Jinja2 Engine
Summary
Polyaxon through 2.16.4 renders operation specification fields with an unsandboxed Jinja2 environment during server-side run preparation, allowing authenticated users to execute arbitrary code. Attackers can submit runs with Jinja2 payloads in queue, namespace, conditions, presets, or dependencies fields to execute operating system commands in the scheduler process context, exposing database credentials and service tokens.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 12:10 UTC
CWE
- CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/polyaxon/polyaxon/issues/1540 | issue-tracking |
| https://github.com/polyaxon/polyaxon | product |
| https://github.com/polyaxon/cli/blob/bfea04a0bf93… | technical-description |
| https://github.com/polyaxon/cli/blob/bfea04a0bf93… | technical-description |
| https://www.vulncheck.com/advisories/polyaxon-thr… | third-party-advisory |
Impacted products
Date Public
2026-06-18 00:00
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CVE-2026-90970 (GCVE-0-2026-90970)
Vulnerability from cvelistv5 – Published: 2026-10-02 14:34 – Updated: 2026-10-02 16:48
VLAI
EPSS
VEX
Title
Improper Neutralization of Special Elements Used in a Template Engine in GitLab AI Gateway
Summary
GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 18.1.6 before 19.2.4, 19.3 before 19.3.2, and 19.4 before 19.4.1 that, under certain conditions, could have allowed an authenticated user with Duo Agent Platform access to escape the prompt template sandbox via a specially crafted flow configuration, resulting in arbitrary command execution on the AI Gateway.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-02 16:47 UTC
CWE
- CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| GitLab | GitLab AI Gateway |
Affected:
18.1.6 , < 19.2.4
(semver)
Affected: 19.3 , < 19.3.2 (semver) Affected: 19.4 , < 19.4.1 (semver) cpe:2.3:a:gitlab:ai-gateway:*:*:*:*:*:*:*:* |
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CVE-2026-89094 (GCVE-0-2026-89094)
Vulnerability from cvelistv5 – Published: 2026-09-10 20:42 – Updated: 2026-09-14 15:41
VLAI
EPSS
VEX
Summary
Forgejo before 16.0.4 allows remote code execution via a crafted template repository because template expansion on files in .forgejo/template is mishandled.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 15:35 UTC
CWE
- CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
Assigner
References
Impacted products
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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.