SARA / Free Tools / CVE / CVE-2022-39197

CVE-2022-39197 — Fortra Cobalt Strike Teamserver Cross-Site Scripting (XSS) Vulnerability

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 usernam

CVSS
EPSS
20.16% (top 4.60%)
CWE
Published
2022-09-22T00:43:41.000Z
Last modified
2025-10-21T23:15:34.953Z
CVSS vector
CISA KEV — Actively Exploited
Added to KEV
2023-03-30
BOD 22-01 due
2023-04-20
Ransomware use
Unknown

01What is this vulnerability?

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…

02Affected products

VendorProductVersions
na / n/an/a

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2023-03-30. Ransomware use: Unknown.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

Want this in your SOAR or SIEM?
SARA's API returns EPSS, CVSS, KEV, and an analyst-grade summary in one call.
Read the API reference →