CVE-2025-45525

LOW

microlight 0.0.7 - NULL Pointer Dereference in CSS Color Value Processing

Title source: llm
STIX 2.1

Description

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.

Scores

CVSS v3 2.9
EPSS 0.0008
EPSS Percentile 24.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-476
Status published
Products (2)
asvd/microlight < 0.0.7
npm/microlight 0npm
Published Jun 17, 2025
Tracked Since Feb 18, 2026