CVE-2021-22157
CVE-2021-22157 is a medium-severity vulnerability in Proofpoint Insider Threat Management with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- CVSS v2: 4.3
- EPSS exploit prediction: 2% (78th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Proofpoint Insider Threat Management
- Published:
- Last modified:
Description
Proofpoint Insider Threat Management Server (formerly ObserveIT Server) before 7.11.1 allows stored XSS.
Frequently asked questions
- What is CVE-2021-22157?
- Proofpoint Insider Threat Management Server (formerly ObserveIT Server) before 7.11.1 allows stored XSS.
- How severe is CVE-2021-22157?
- CVE-2021-22157 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2021-22157 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-22157?
- CVE-2021-22157 affects Proofpoint Insider Threat Management. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-22157?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-22157 published?
- CVE-2021-22157 was published on 2021-04-06 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:proofpoint:insider_threat_management:*:*:*:*:*:*:*:*
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