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ExploitedIn CISA KEVFix available

CVE-2022-39197

Exploitation confirmed. First attested on 2023-03-30 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2022-09-22
  • Fixed in4.7.1
  • WeaknessCWE-79

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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).

Timeline

dates in UTC
  1. 2022-09-2201:15CVE publishedNVD
  2. 2023-03-30Added to the CISA KEV catalogCISA KEV
  3. 2023-03-30Listed as exploited by GCVEGCVE
  4. 2023-03-30Exploitation first reportedCISA KEV
  5. 2025-01-2821:44SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-39197?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-39197?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Helpsystems cobalt strike
BranchAffectedFixed in
4.7< 4.7.14.7.1

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Helpsystems cobalt strike to 4.7.1
  2. CISA’s required action: Apply updates per vendor instructions.due 2023-04-20

Advisories and patches

Detection

read 2026-11-02 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
15 repositories, unverifiedsafe3s/CVE-2022-39197zeoday/cobaltstrike4.5_cdf-1burpheart/cve-2022-39197xzajyjs/CVE-2022-39197-POCyqcs/CSPOC
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2023-03-30
Patch Due Date
2023-04-20
Ransomware Use
Unknown
Required Action
Apply updates per vendor instructions.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Published
2022-09-22
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-9jq3-pg7g-c4wc

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).

Is CVE-2022-39197 actively exploited?

Yes. CVE-2022-39197 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2023-04-20.

What is the CVSS score for CVE-2022-39197?

CVE-2022-39197 has a CVSS v3 base score of 6.1 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

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Sources for this record