PassPortal browser extension: vault token disclosure via unvalidated postMessage
Priority LOW 30CWE-1385Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00248 16th percentileScored 2026-11-07
Fix Fixed PassPortal (N-able): 3.49.6
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA PassPortal (N-able) Fixed in 3.49.6
Timeline
- 2026-10-02 Threatist record created from CVE-2026-15580
- 2026-10-03 Alias added: GHSA-6637-gh22-j6hq
References
More N-able vulnerabilities
- TI-2026-59007 pre-authentication remote code execution KEVCVSS 4.0CRITICAL 10.0
- TI-2025-08126 Command injection in N-able N-central KEVCVSS 4.0CRITICAL 9.4
- TI-2025-08125 Insecure deserialization in N-able N-central KEVCVSS 4.0CRITICAL 9.4
- TI-2026-15225 Incomplete patch leads to administrative account takeover KEVCVSS 4.0HIGH 8.2
- TI-2026-15214 Unauthenticated administrative account takeover KEVCVSS 4.0HIGH 8.2
- TI-2025-10725 N-central Multiple XXE Injection Vulnerabilities CVSS 4.0HIGH 8.4
Sources
- CVE-2026-15580 · CVE Program
- CVE-2026-15580 · NVD
- FIRST EPSS
- GHSA-6637-gh22-j6hq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences