HIGH
Sitecore through 10.1, when Update Center is enabled, allows remote authenticated users to upload arbitrary files and achieve remote code execution by visiting an uploaded .aspx file at an admin/Packages URL
Published Aug 12, 2021
8.8
HIGHCVSS 3.1
EPSS 2.93%
Description
Sitecore through 10.1, when Update Center is enabled, allows remote authenticated users to upload arbitrary files and achieve remote code execution by visiting an uploaded .aspx file at an admin/Packages URL.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
8.8 HIGH NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
No CVSS v3.0 score for this CVE.
6.8 MEDIUM NVD
AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.93% 0.02928
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.02928
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 2.93% (0.02928) | 86.61th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.93% (0.02928) | 85.23th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.79% (0.02790) | 84.81th | v4 (v2025.03.14) |
| Mar 29, 2025 | 9.78% (0.09778) | 88.17th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.62% (0.02616) | 84.63th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.27% (0.00266) | 68.48th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.27% (0.00266) | 66.68th | v3 (v2023.03.01) |
| Jan 25, 2024 | 0.27% (0.00266) | 64.28th | v3 (v2023.03.01) |
| Jul 28, 2023 | 0.25% (0.00253) | 62.24th | v3 (v2023.03.01) |
| Mar 20, 2023 | 0.24% (0.00242) | 60.43th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.23% (0.00232) | 59.52th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.16% (0.01156) | 61.37th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.16% (0.01156) | 60.36th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.16% (0.01156) | 58.36th | v2 (v2022.01.01) |
| Feb 4, 2022 | 15.36% (0.15362) | 92.49th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.99% (0.03991) | 73.89th | v1 |
| Jan 6, 2022 | 3.99% (0.03991) | 73.67th | v1 |
| Sep 1, 2021 | 0.92% (0.00918) | 60.61th | v1 |
| Aug 13, 2021 | 0.92% (0.00918) | 0.00th | v1 |
Weaknesses (1)
References (1)
- https://blog.istern.dk/2021/08/10/sitecore-10-authenticated-file-upload-to-rce/ x_refsource_MISCExploitThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://blog.istern.dk/2021/08/10/sitecore-10-authenticated-file-upload-to-rce/ | x_refsource_MISCExploitThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Aug 12, 2021
Updated Aug 4, 2024
Reserved Aug 10, 2021
Link CVE-2021-38366
CISA Vulnrichment
Updated n/a