Amidaware Tactical RMM up to 1.3.1 Jinja2 Template preview generate_html template_md special elements used in a template engine

Summaryinfo

A vulnerability categorized as critical has been discovered in Amidaware Tactical RMM up to 1.3.1. This affects the function generate_html of the file /reporting/templates/preview/ of the component Jinja2 Template Handler. The manipulation of the argument template_md results in improper neutralization of special elements used in a template engine. This vulnerability was named CVE-2025-69516. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Amidaware Tactical RMM up to 1.3.1. It has been classified as critical. Affected is the function generate_html of the file /reporting/templates/preview/ of the component Jinja2 Template Handler. The manipulation of the argument template_md with an unknown input leads to a improper neutralization of special elements used in a template engine vulnerability. CWE is classifying the issue as CWE-1336. 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A Server-Side Template Injection (SSTI) vulnerability in the /reporting/templates/preview/ endpoint of Amidaware Tactical RMM, affecting versions equal to or earlier than v1.3.1, allows low-privileged users with Report Viewer or Report Manager permissions to achieve remote command execution on the server. This occurs due to improper sanitization of the template_md parameter, enabling direct injection of Jinja2 templates. This occurs due to misuse of the generate_html() function, the user-controlled value is inserted into `env.from_string`, a function that processes Jinja2 templates arbitrarily, making an SSTI possible.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2025-69516 since 01/09/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 02/14/2026). The MITRE ATT&CK project declares the attack technique as T1221.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-206512). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Amidaware

Name

• Tactical RMM

Version

• 1.3.0
• 1.3.1

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Once again VulDB remains the best source for vulnerability data.

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