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CVE-2023-1004· NVD / CVE Program· CNA VulDB

MarkText WSH JScript code injection

A vulnerability has been found in MarkText up to 0.17.1 on Windows and classified as critical. Affected by this vulnerability is an unknown functionality of the component WSH JScript Handler. The manipulation leads to code injection. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The identifier VDB-221737 was assigned to this vulnerability.

HighCVSS 7.8 · v3.1—No exploit No fix recorded
Published
Feb 24, 2023
Updated
Jun 17, 2026
EPSS
0.4% · 29th percentile
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Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.8
CNA · VulDB
5.3
2.5 point gap

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
marktextmarktext
microsoftwindows

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • marktext marktextup to 0.17.1 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulDB). Independent of NVD's CPE analysis and usually ahead of it.

  • n/a MarkText

    • 0.17.0, 0.17.1affected

Same product

marktext: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-25069Mark Text v0.16.3 was discovered to contain a DOM-based cross-site scripting (XSS) vulnerability which allows attackers to perform remote co
    39Monitor
  • CVE-2021-29996Mark Text through 0.16.3 allows attackers arbitrary command execution.
    39Monitor
  • CVE-2020-27176Mutation XSS exists in Mark Text through 0.16.2 that leads to Remote Code Execution.
    39Monitor
  • CVE-2023-2318MarkText DOM-Based Cross-site Scripting leading to Remote Code Execution
    38Monitor
  • CVE-2022-24123MarkText through 0.16.3 does not sanitize the input of a mermaid block before rendering.
    37Monitor
  • CVE-2022-21158A stored cross-site scripting vulnerability in marktext versions prior to v0.17.0 due to improper handling of the link (with javascript: sch
    21Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-94 · Improper Control of Generation of Code ('Code Injection')

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records