Medium 6.1Known exploited (CISA KEV)Published Sep 22, 2022

CVE-2022-39197An 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.

Updated under an hour ago (2026-10-19 07:10 UTC)

Does this affect you?

It affects helpsystems cobalt_strike. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Mar 30, 2023; federal agencies had to remediate by Apr 20, 2023. Treat that date as your deadline.

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Every CVE for helpsystems cobalt_strike

Exploited in the last 30 days

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).

CVSS: 6.1 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
Known exploited: Added to CISA KEV Mar 30, 2023; federal remediation due Apr 20, 2023Apply updates per vendor instructions.
EPSS (exploitation in the next 30 days): 46.45% (percentile 99)
Assigned by: mitre
NVD analysis: Analyzed
Record last updated: Oct 21, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

helpsystems cobalt_strike helpsystems:cobalt_strike	before 4.7.1	NVD

References

https://www.cobaltstrike.com/blog/tag/release/x-refsource-misc, release-notes, vendor-advisory
https://www.cobaltstrike.com/blog/out-of-band-update-cobalt-strike-4-7-1/x-refsource-misc, mitigation, vendor-advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-39197us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.