Zettlr up to 2.3.0 Markdown File cross-domain policy

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Zettlr up to 2.3.0. Affected by this issue is some unknown functionality of the component Markdown File Handler. The manipulation leads to cross-domain policy. This vulnerability is traded as CVE-2022-40276. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Zettlr up to 2.3.0. It has been rated as critical. This issue affects some unknown processing of the component Markdown File Handler. The manipulation with an unknown input leads to a cross-domain policy vulnerability. Using CWE to declare the problem leads to CWE-942. The product uses a cross-domain policy file that includes domains that should not be trusted. Impacted is confidentiality. The summary by CVE is:

Zettlr version 2.3.0 allows an external attacker to remotely obtain arbitrary local files on any client that attempts to view a malicious markdown file through Zettlr. This is possible because the application does not have a CSP policy (or at least not strict enough) and/or does not properly validate the contents of markdown files before rendering them.

The weakness was shared 11/04/2022. It is possible to read the advisory at fluidattacks.com. The identification of this vulnerability is CVE-2022-40276 since 09/08/2022. The exploitation is known to be difficult. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

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

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.9

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Cross-domain policy
CWE: CWE-942 / CWE-346 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/08/2022 🔍
11/04/2022 +57 days 🔍
11/04/2022 +0 days 🔍
05/03/2025 +911 days 🔍

Sourcesinfo

Advisory: fluidattacks.com
Status: Not defined

CVE: CVE-2022-40276 (🔍)
GCVE (CVE): GCVE-0-2022-40276
GCVE (VulDB): GCVE-100-212939

Entryinfo

Created: 11/04/2022 07:26
Updated: 05/03/2025 04:54
Changes: 11/04/2022 07:26 (30), 11/04/2022 07:28 (9), 12/04/2022 14:08 (12), 05/03/2025 04:54 (15)
Complete: 🔍
Cache ID: 216::103

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