vnotex vnote up to 3.20.1 YAML Frontmatter markdownit.js p_metaData cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.2$0-$5k1.45+

Summaryinfo

A vulnerability, which was classified as problematic, was found in vnotex vnote up to 3.20.1. The affected element is an unknown function of the file /src/data/extra/web/js/markdownit.js of the component YAML Frontmatter. Such manipulation of the argument p_metaData leads to cross site scripting. This vulnerability is traded as CVE-2026-15505. The attack may be launched remotely. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability was found in vnotex vnote up to 3.20.1 and classified as problematic. Affected by this issue is some unknown functionality of the file /src/data/extra/web/js/markdownit.js of the component YAML Frontmatter. The manipulation of the argument p_metaData with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity.

This vulnerability is handled as CVE-2026-15505. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. Technical details as well as a exploit are known. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

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

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

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.2

VulDB Base Score: 3.5
VulDB Temp Score: 3.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Proof-of-Concept
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

07/12/2026 Advisory disclosed
07/12/2026 +0 days VulDB entry created
07/12/2026 +0 days VulDB entry last update

Sourcesinfo

Status: Not defined

CVE: CVE-2026-15505 (🔒)
GCVE (CVE): GCVE-0-2026-15505
GCVE (VulDB): GCVE-100-377834
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/12/2026 07:41
Changes: 07/12/2026 07:41 (54)
Complete: 🔍
Submitter: SISUBENY
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #844847: vnote v3.20.1 Improper Neutralization of Alternate XSS Syntax (by SISUBENY)

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

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