CVE-2026-120627

HIGH
MEDIUM Priority: 0.01 BB Relevance: 75/100
Published: 2026-11-02 Modified: 2026-11-06 First seen: 2026-11-02 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: None
A: None

Description

The Private Internet Access Extension for Firefox contains an unguarded onAuthRequired authentication handler, leading to leakage of PIA proxy credentials when a user visits any malicious website that issues a Basic auth challenge. This issue was fixed in version 3.2.5, but reintroduced in later versions.

Weakness Classification (1)

Affected Software (2)

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploitation Probability

0.18%
Raw Score 0.001790
Percentile 7.6%
Date 2026-11-06

EPSS Trend

2026-11-06
0.00179
2026-11-05
0.00179
2026-11-04
0.00179
2026-11-03
0.00179

Intelligence Sources

mitre ref →
nvd ref →