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CVE-2021-22158

HIGH
7.2
CVSS Score
Published: April 6, 2021 at 08:52 PM UTC
Updated: June 17, 2026 at 03:36 AM UTC
1 product affected across 1 vendorInsider Threat Management

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Severity
HIGH7.2
Exploit prediction
EPSS 0.6%

Description

The Proofpoint Insider Threat Management Server (formerly ObserveIT Server) is vulnerable to XML external entity (XXE) injection in the Web Console. The vulnerability requires admin user privileges and knowledge of the XML file's encryption key to successfully exploit. All versions before 7.11 are affected.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Insider Threat Management· Proofpoint
95%
7.10.0 ≤ v < 7.10.37.11.0 ≤ v < 7.11.17.9.0 ≤ v < 7.9.3
Affected range stops below 7.10.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.11.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.9.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2021-0003

CVSS

7.2HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-611

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