mailcow-dockerized 2024-07 special elements used in a template engine

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability was found in mailcow-dockerized and classified as problematic. This impacts an unknown function. Such manipulation leads to improper neutralization of special elements used in a template engine. This vulnerability is traded as CVE-2025-53909. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in mailcow-dockerized. It has been rated as problematic. Affected by this issue is an unknown code. The manipulation with an unknown input leads to a improper neutralization of special elements used in a template engine vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

mailcow: dockerized is an open source groupware/email suite based on docker. A Server-Side Template Injection (SSTI) vulnerability exists in versions prior to 2025-07 in the notification template system used by mailcow for sending quota and quarantine alerts. The template rendering engine allows template expressions that may be abused to execute code in certain contexts. The issue requires admin-level access to mailcow UI to configure templates, which are automatically rendered during normal system operation. Version 2025-07 contains a patch for the issue.

The advisory is available at github.com. This vulnerability is handled as CVE-2025-53909 since 07/11/2025. The exploitation is known to be easy. The attack may be launched remotely. Additional levels of successful authentication are needed for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1221 by the MITRE ATT&CK project.

Upgrading to version 2025-07 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-21774). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.2
NVD Vector: 🔒

CNA Base Score: 9.1
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper neutralization of special elements used in a template engine
CWE: CWE-1336 / CWE-791 / CWE-790
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: mailcow-dockerized 2025-07

Timelineinfo

07/11/2025 CVE reserved
07/17/2025 +6 days Advisory disclosed
07/17/2025 +0 days VulDB entry created
09/12/2025 +57 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2025-53909 (🔒)
GCVE (CVE): GCVE-0-2025-53909
GCVE (VulDB): GCVE-100-316754
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20171019

Entryinfo

Created: 07/17/2025 16:18
Updated: 09/12/2025 03:40
Changes: 07/17/2025 16:18 (62), 07/17/2025 23:29 (1), 09/12/2025 03:40 (12)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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