A NULL pointer dereference vulnerability has been identified in the JavaScript library microlight version 0.0.7, a lightweight syntax highlighting library. When processing elements with non-standard CSS color values, the library fails to validate the result of a regular expression match before accessing its properties, leading to an uncaught TypeError and potential application crash. NOTE: this is disputed by multiple parties because there is no common scenario in which an adversary can insert those non-standard values.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

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References
Link Providers
https://gist.github.com/Rootingg/843368931f70886bed3cf982f10a4424 cve-icon cve-icon
https://github.com/github/advisory-database/pull/5730 cve-icon cve-icon
History

Fri, 20 Jun 2025 12:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'}

 cvssV3_1

{'score': 2.9, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'}

Fri, 20 Jun 2025 12:00:00 +0000

Type Values Removed Values Added
Description A null pointer dereference vulnerability was discovered in microlight.js (version 0.0.7), a lightweight syntax highlighting library. When processing elements with non-standard CSS color values, the library fails to validate the result of a regular expression match before accessing its properties, leading to an uncaught TypeError and potential application crash. A NULL pointer dereference vulnerability has been identified in the JavaScript library microlight version 0.0.7, a lightweight syntax highlighting library. When processing elements with non-standard CSS color values, the library fails to validate the result of a regular expression match before accessing its properties, leading to an uncaught TypeError and potential application crash. NOTE: this is disputed by multiple parties because there is no common scenario in which an adversary can insert those non-standard values.
References

Wed, 18 Jun 2025 14:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-476
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 17 Jun 2025 20:00:00 +0000

Type Values Removed Values Added
Description A null pointer dereference vulnerability was discovered in microlight.js (version 0.0.7), a lightweight syntax highlighting library. When processing elements with non-standard CSS color values, the library fails to validate the result of a regular expression match before accessing its properties, leading to an uncaught TypeError and potential application crash.
References
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2025-06-17T00:00:00.000Z

Updated: 2025-06-20T12:03:14.607Z

Reserved: 2025-04-22T00:00:00.000Z

Link: CVE-2025-45525

cve-icon Vulnrichment

Updated: 2025-06-18T13:24:23.982Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-06-17T20:15:32.150

Modified: 2025-06-20T12:15:21.780

Link: CVE-2025-45525

cve-icon Redhat

No data.