Cleartext Storage of Sensitive Information in Cookies
Published Dec 31, 2020
7.5
HIGHCVSS 3.1
EPSS 0.67%
Description
A vulnerability has been reported to affect QNAP NAS. If exploited, this vulnerability allows an attacker to access sensitive information stored in cleartext inside cookies via certain widely-available tools. QNAP have already fixed this vulnerability in the following versions: QTS 4.5.1.1456 build 20201015 (and later) QuTS hero h4.5.1.1472 build 20201031 (and later) QuTScloud c4.5.2.1379 build 20200730 (and later)
Affected products
-
- Version unspecifiedStatusaffectedConstraints<4.5.1.1456
- Version
-
- Version unspecifiedStatusaffectedConstraints<h4.5.1.1472
- Version
-
- Version unspecifiedStatusaffectedConstraints<c4.5.2.1379
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| QNAP Systems Inc. | QTS | n/a |
| ||||||
| QNAP Systems Inc. | QuTS hero | n/a |
| ||||||
| QNAP Systems Inc. | QuTScloud | n/a |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
QNAP have already fixed this vulnerability in the following versions:
QTS 4.5.1.1456 build 20201015 (and later) QuTS hero h4.5.1.1472 build 20201031 (and later) QuTScloud c4.5.2.1379 build 20200730 (and later)
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.67% (0.00666) | 50.02th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.66% (0.00658) | 50.07th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.16% (0.00161) | 53.16th | v3 (v2023.03.01) |
| Sep 16, 2023 | 0.16% (0.00161) | 52.35th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.14% (0.00144) | 48.43th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.42% (0.00416) | 10.04th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
References (1)
- https://www.qnap.com/zh-tw/security-advisory/qsa-20-23 x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://www.qnap.com/zh-tw/security-advisory/qsa-20-23 | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.