CVE-2021-31835
McAfee ePO Cross-Site Scripting vulnerability
Cross-Site Scripting vulnerability in McAfee ePolicy Orchestrator (ePO) prior to 5.10 Update 11 allows ePO administrators to inject arbitrary web script or HTML via a specific parameter where the administrator's entries were not correctly sanitized.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
McAfee ePO Cross-Site Scripting vulnerability
Cross-Site Scripting vulnerability in McAfee ePolicy Orchestrator (ePO) prior to 5.10 Update 11 allows ePO administrators to inject arbitrary web script or HTML via a specific parameter where the administrator's entries were not correctly sanitized.
- Record
CVE-2021-31835- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-18710
Cross-Site Scripting vulnerability in McAfee ePolicy Orchestrator (ePO) prior to 5.10 Update 11 allows ePO administrators to inject arbitrary web script or HTML via a specific parameter where the administrator's entries were not correctly sanitized.
- Record
EUVD-2021-18710- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qvx2-3pfh-24vj
Cross-Site Scripting vulnerability in McAfee ePolicy Orchestrator (ePO) prior to 5.10 Update 11...
Cross-Site Scripting vulnerability in McAfee ePolicy Orchestrator (ePO) prior to 5.10 Update 11 allows ePO administrators to inject arbitrary web script or HTML via a specific parameter where the administrator's entries were not correctly sanitized.
- Record
GHSA-qvx2-3pfh-24vj- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
Cross-Site Scripting vulnerability in McAfee ePolicy Orchestrator (ePO) prior to 5.10 Update 11 allows ePO administrators to inject arbitrary web script or HTML via a specific parameter where the administrator's entries were not correctly sanitized.
- Record
CVE-2021-31835- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/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
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-2021-31835 is a medium vulnerability (CVSS 4.8) in Mcafee Epolicy Orchestrator, published October 22, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.56%, the 46th percentile. No source names a fixed version.