CVE-2025-66286

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 59/100
Published: 2026-04-23 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Network Low Complexity No Auth Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Changed
C: Low
I: None
A: None

Description

An API design flaw in WebKitGTK and WPE WebKit allows untrusted web content to unexpectedly perform IP connections, DNS lookups, and HTTP requests. Applications expect to use the WebPage::send-request signal handler to approve or reject all network requests. However, certain types of HTTP requests bypass this signal handler.

Bug Bounty Relevance

59 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

4.7 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

EPSS — Exploitation Probability

0.23%
Raw Score 0.002330
Percentile 14.3%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00233
2026-11-13
0.00233
2026-11-12
0.00233
2026-11-10
0.00233
2026-11-09
0.00233
2026-11-08
0.00233
2026-11-07
0.00233
2026-11-06
0.00233
2026-11-05
0.00233

Intelligence Sources

mitre ref →
nvd ref →