CVE-2026-15580
PassPortal browser extension: vault token disclosure via unvalidated postMessage
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Active
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
PassPortal browser extension: vault token disclosure via unvalidated postMessage
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.
- Record
CVE-2026-15580- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-1385
- Updated
- 2026-11-02
EUVDEUVD-2026-63972
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.
- Record
EUVD-2026-63972- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-6637-gh22-j6hq
vault token disclosure via unvalidated postMessage vulnerability in N-able PassPortal allows...
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.
- Record
GHSA-6637-gh22-j6hq- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Weakness
- CWE-1385
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-15580- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Weakness
- CWE-1385
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-15580 is a medium vulnerability (CVSS 6.9) in N-able Passportal, published August 21, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.25%, the 16th percentile. No source names a fixed version.