CVE-2018-12302
Missing HTTPOnly flag on session cookies in the Seagate NAS OS version 4.3.15.1 web application...
Missing HTTPOnly flag on session cookies in the Seagate NAS OS version 4.3.15.1 web application allows attackers to steal session tokens via cross-site scripting.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Missing HTTPOnly flag on session cookies in the Seagate NAS OS version 4.3.15.1 web application allows attackers to steal session tokens via cross-site scripting.
- Record
CVE-2018-12302- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
Missing HTTPOnly flag on session cookies in the Seagate NAS OS version 4.3.15.1 web application allows attackers to steal session tokens via cross-site scripting.
- Record
CVE-2018-12302- Updated
- 2026-11-02
EUVDEUVD-2018-4276 No score
Missing HTTPOnly flag on session cookies in the Seagate NAS OS version 4.3.15.1 web application allows attackers to steal session tokens via cross-site scripting.
- Record
EUVD-2018-4276- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jrp8-2jvx-5vrf No score
Missing HTTPOnly flag on session cookies in the Seagate NAS OS version 4.3.15.1 web application...
Missing HTTPOnly flag on session cookies in the Seagate NAS OS version 4.3.15.1 web application allows attackers to steal session tokens via cross-site scripting.
- Record
GHSA-jrp8-2jvx-5vrf- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-12302 is a medium vulnerability (CVSS 6.1) in Seagate Nas Os, published May 13, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.80%, the 56th percentile. No source names a fixed version.