TDuckCloud TDuck Survey Form up to 6.0 Save Form Theme poc_user_form_theme_save_id_confusion.py saveFormTheme theme_id/formKey resource injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.2$0-$5k0.86

Summaryinfo

A vulnerability categorized as problematic has been discovered in TDuckCloud TDuck Survey Form up to 6.0. Affected by this vulnerability is the function saveFormTheme of the file poc_user_form_theme_save_id_confusion.py of the component Save Form Theme. Such manipulation of the argument theme_id/formKey leads to resource injection. This vulnerability is referenced as CVE-2026-109167. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in TDuckCloud TDuck Survey Form up to 6.0. Affected by this issue is the function saveFormTheme of the file poc_user_form_theme_save_id_confusion.py of the component Save Form Theme. The manipulation of the argument theme_id/formKey with an unknown input leads to a resource injection vulnerability. Using CWE to declare the problem leads to CWE-99. The product receives input from an upstream component, but it does not restrict or incorrectly restricts the input before it is used as an identifier for a resource that may be outside the intended sphere of control. Impacted is integrity. CVE summarizes:

TDuck survey form through 6.0 contains an insecure direct object reference vulnerability in the saveFormTheme handler that allows authenticated users to overwrite other users' form themes. Attackers whose form has no theme can submit another form's sequential theme id with their own formKey, replacing its colours and image URLs and removing the victim's theme.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-109167 since 10/12/2026. The exploitation is known to be easy. The attack may be launched 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 10/12/2026).

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector (VulnCheck): 🔒

CVSSv2info

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

Exploitinginfo

Class: Resource injection
CWE: CWE-99
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/12/2026 Advisory disclosed
10/12/2026 +0 days CVE reserved
10/12/2026 +0 days VulDB entry created
10/12/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2026-109167 (🔒)
GCVE (CVE): GCVE-0-2026-109167
GCVE (VulDB): GCVE-100-416900

Entryinfo

Created: 10/12/2026 15:26
Changes: 10/12/2026 15:26 (78)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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