How severe is CVE-2022-39197?

CVE-2022-39197 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-2022-39197 being actively exploited?

Yes. CVE-2022-39197 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2023-03-30, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2022-39197?

CVE-2022-39197 affects Helpsystems Cobalt Strike. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-39197?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2022-39197 have an EU (EUVD) identifier?

Yes. CVE-2022-39197 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-41742. It is also flagged as exploited in the EUVD (since 2023-03-30).

When was CVE-2022-39197 published?

CVE-2022-39197 was published on 2022-09-22 and last updated on 2026-06-17.

CVE-2022-39197

CVE-2022-39197 is a medium-severity vulnerability in Helpsystems Cobalt Strike with a CVSS 3.x base score of 6.1. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2023-03-30). The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 46% (99th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2023-03-30)
EU (EUVD) id: EUVD-2022-41742
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2023-03-30)
Weakness: CWE-79
Affected product: Helpsystems Cobalt Strike
Published: 2022-09-22
Last modified: 2026-06-17

Description

An XSS (Cross Site Scripting) vulnerability was found in HelpSystems Cobalt Strike through 4.7 that allowed a remote attacker to execute HTML on the Cobalt Strike teamserver. To exploit the vulnerability, one must first inspect a Cobalt Strike payload, and then modify the username field in the payload (or create a new payload with the extracted information and then modify that username field to be malformed).

Frequently asked questions

What is CVE-2022-39197?: An XSS (Cross Site Scripting) vulnerability was found in HelpSystems Cobalt Strike through 4.7 that allowed a remote attacker to execute HTML on the Cobalt Strike teamserver. To exploit the vulnerability, one must first inspect a Cobalt Strike payload, and then modify the username field in the payload (or create a new payload with the extracted information and then modify that username field to be malformed).
How severe is CVE-2022-39197?: CVE-2022-39197 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-2022-39197 being actively exploited?: Yes. CVE-2022-39197 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2023-03-30, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2022-39197?: CVE-2022-39197 affects Helpsystems Cobalt Strike. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-39197?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2022-39197 have an EU (EUVD) identifier?: Yes. CVE-2022-39197 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-41742. It is also flagged as exploited in the EUVD (since 2023-03-30).
When was CVE-2022-39197 published?: CVE-2022-39197 was published on 2022-09-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:helpsystems:cobalt_strike:*:*:*:*:*:*:*:*

More vulnerabilities in Helpsystems Cobalt Strike

CVE-2022-42948 — Critical (CVSS 9.8): Cobalt Strike 4.7.1 fails to properly escape HTML tags when they are displayed on Swing components. By injecting…
CVE-2022-23317 — High (CVSS 7.5): CobaltStrike <=4.5 HTTP(S) listener does not determine whether the request URL begins with "/", and attackers can…
CVE-2021-36798 — High (CVSS 7.5): A Denial-of-Service (DoS) vulnerability was discovered in Team Server in HelpSystems Cobalt Strike 4.2 and 4.3. It…

All CVEs affecting Helpsystems Cobalt Strike →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →