CVE-2021-22158 is an XML External Entity (XXE) injection vulnerability affecting the Proofpoint Insider Threat Management Server (formerly ObserveIT Server) in all versions prior to 7.11. Exploitation requires administrative privileges and knowledge of the XML file's encryption key, allowing for high impact to confidentiality, integrity, and availability. Rated with a CVSS score of 7.2 (HIGH), this vulnerability is not currently listed in CISA's KEV catalog, nor is there any public exploit code or significant community discussion indicating active exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 7.9.0, < 7.9.3CPE matchmatch criteria | cpe:2.3:a:proofpoint:insider_threat_management:*:*:*:*:*:*:*:* | ||
>= 7.10.0, < 7.10.3CPE matchmatch criteria | cpe:2.3:a:proofpoint:insider_threat_management:*:*:*:*:*:*:*:* | ||
>= 7.11.0, < 7.11.1CPE matchmatch criteria | cpe:2.3:a:proofpoint:insider_threat_management:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.