GHSA-wgc6-9f6w-h8hx · Severity: low · Ecosystem: npm — Withdrawn Advisory: microlight allows a denial of service
A denial of service (DoS) vulnerability has been identified in the JavaScript library microlight version 0.0.7. This library, used for syntax highlighting, does not limit the size of textual content it processes in HTML elements with the microlight class. When excessively large content (e.g., 100 million characters) is processed, the reset function in microlight.js consumes excessive memory and CPU resources, causing browser crashes or unresponsiveness. An attacker can exploit this vulnerability by tricking a user into visiting a malicious web page containing a microlight element with large content, resulting in a denial of service. NOTE: this is disputed by multiple parties because a large amount of memory and CPU resources is expected to be needed for content of that size.
Conclusion & alert: CVE-2025-45526 is rated Low Risk (20.2/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.08%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-04-13 | 0.02% | 0.08% | +0.07% |
| 2 | 2025-06-18 | — | 0.02% | — |
Full EPSS history (2 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 2.9 | 3.1 | LOW |
|
1.4 | 1.4 | [email protected] |
GHSA-wgc6-9f6w-h8hx · Severity: low · Ecosystem: npm — Withdrawn Advisory: microlight allows a denial of service
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| No affected products in dataset. | |||