Deserialization of Untrusted Data in the Sitecore.Security.AntiCSRF (aka anti CSRF) module in Sitecore CMS 7.0 to 7.2 and Sitecore XP 7.5 to 8.2 allows an unauthenticated attacker to execute arbitrary code by sending a serialized .NET object in the HTTP POST parameter __CSRFTOKEN
Published May 31, 2019 ·Due Apr 16, 2025
9.8
CRITICALCVSS 3.1
EPSS 83.74%
Description
Deserialization of Untrusted Data in the Sitecore.Security.AntiCSRF (aka anti CSRF) module in Sitecore CMS 7.0 to 7.2 and Sitecore XP 7.5 to 8.2 allows an unauthenticated attacker to execute arbitrary code by sending a serialized .NET object in the HTTP POST parameter __CSRFTOKEN.
Affected products
No data.
- ≥ 7.0 · ≤ 7.2
- ≥ 7.5 · ≤ 8.2
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
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:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
Date Added
Mar 26, 2025
Patch Due
Apr 16, 2025
Required Action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
ActiveAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Mar 26, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
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 (32 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 83.74% (0.83736) | 99.68th | v5 (v2026.06.15) |
| Jun 15, 2026 | 83.86% (0.83857) | 99.66th | v5 (v2026.06.15) |
| May 4, 2026 | 87.63% (0.87631) | 99.47th | v4 (v2025.03.14) |
| Jan 30, 2026 | 78.93% (0.78933) | 99.02th | v4 (v2025.03.14) |
| Dec 17, 2025 | 75.40% (0.75396) | 98.84th | v4 (v2025.03.14) |
| Nov 22, 2025 | 78.93% (0.78933) | 99.00th | v4 (v2025.03.14) |
| Nov 21, 2025 | 76.36% (0.76362) | 98.87th | v4 (v2025.03.14) |
| Nov 18, 2025 | 77.89% (0.77886) | 99.08th | v4 (v2025.03.14) |
| Nov 8, 2025 | 76.36% (0.76362) | 98.87th | v4 (v2025.03.14) |
| Oct 17, 2025 | 82.22% (0.82224) | 99.17th | v4 (v2025.03.14) |
| Oct 9, 2025 | 84.06% (0.84062) | 99.26th | v4 (v2025.03.14) |
| Aug 24, 2025 | 25.05% (0.25050) | 95.96th | v4 (v2025.03.14) |
| Aug 22, 2025 | 20.06% (0.20059) | 95.26th | v4 (v2025.03.14) |
| May 21, 2025 | 18.39% (0.18393) | 94.88th | v4 (v2025.03.14) |
| Apr 15, 2025 | 23.12% (0.23116) | 95.53th | v4 (v2025.03.14) |
| Apr 5, 2025 | 35.40% (0.35401) | 96.73th | v4 (v2025.03.14) |
| Mar 30, 2025 | 33.80% (0.33796) | 96.59th | v4 (v2025.03.14) |
| Mar 29, 2025 | 79.68% (0.79684) | 98.83th | v4 (v2025.03.14) |
| Mar 27, 2025 | 33.80% (0.33796) | 96.36th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.51% (0.04507) | 88.39th | v4 (v2025.03.14) |
| Dec 17, 2024 | 3.69% (0.03692) | 91.63th | v3 (v2023.03.01) |
| May 24, 2024 | 1.64% (0.01639) | 87.53th | v3 (v2023.03.01) |
| Apr 21, 2024 | 1.44% (0.01436) | 86.40th | v3 (v2023.03.01) |
| Jan 14, 2024 | 1.28% (0.01277) | 84.23th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.65% (0.01650) | 85.59th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.94% (0.03938) | 85.89th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.94% (0.03938) | 84.44th | v2 (v2022.01.01) |
| Feb 4, 2022 | 30.44% (0.30441) | 96.32th | v2 (v2022.01.01) |
| Feb 3, 2022 | 6.22% (0.06225) | 82.33th | v1 |
| Jan 6, 2022 | 6.22% (0.06225) | 82.16th | v1 |
| Sep 1, 2021 | 1.46% (0.01458) | 72.29th | v1 |
| Apr 14, 2021 | 1.46% (0.01458) | 0.00th | v1 |
References (4)
- https://dev.sitecore.net/Downloads.aspx x_refsource_MISCProductVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-9874 government-resourceUS Government Resource
- https://www.synacktiv.com/blog.html x_refsource_MISCThird Party Advisory
- https://www.synacktiv.com/ressources/advisories/Sitecore_CSRF_deserialize_RCE.pdf x_refsource_MISCExploitPatchThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://dev.sitecore.net/Downloads.aspx | x_refsource_MISCProductVendor Advisory | |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-9874 | government-resourceUS Government Resource | |
| https://www.synacktiv.com/blog.html | x_refsource_MISCThird Party Advisory | |
| https://www.synacktiv.com/ressources/advisories/Sitecore_CSRF_deserialize_RCE.pdf | x_refsource_MISCExploitPatchThird Party Advisory |
Change history (0)
No recorded changes yet.