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CVE-2026-15580

PassPortal browser extension: vault token disclosure via unvalidated postMessage

MEDIUM
6.9
CVSS Score
Published: August 21, 2026 at 02:00 PM UTC
Updated: October 15, 2026 at 07:10 PM UTC
1 product affected across 1 vendorPassPortal

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Severity
MEDIUM6.9
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

vault token disclosure via unvalidated postMessage vulnerability in N-able PassPortal allows Authentication Abuse. This issue affects the PassPortal browser extension: before 3.49.6.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

PassPortal· N Able
90%
0 ≤ v < 3.49.60
Affected range stops below 3.49.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://me.n-able.com/s/security-advisory/aArVy0000002GQTKA2/cve202615580-vault-token-disclosure-via-unvalidated-postmessage

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.9MEDIUMN-able
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-1385

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