CVE-2022-39197
Actively exploited. CVE-2022-39197 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-03-30) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
Public exploit code is available. Proof-of-concept or working exploit code for CVE-2022-39197 is indexed in GitHub PoC. Expect opportunistic scanning and exploitation attempts — prioritize remediation.
Fortra Cobalt Strike contains a cross-site scripting (XSS) vulnerability in Teamserver that would allow an attacker to set a malformed username in the Beacon configuration, allowing them to execute code remotely.
CSIRTS triage
- What
- Cobalt Strike contains a cross-site scripting vulnerability in Teamserver.
- Who is affected
- Users of Fortra Cobalt Strike Teamserver.
- Urgency
- Urgent remediation is necessary as the vulnerability is actively exploited.
- Action
- Update Cobalt Strike Teamserver to the latest version.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 99% of all EPSS-scored CVEs.
Exploit availability
Public exploit or proof-of-concept code for CVE-2022-39197 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.
- GitHub PoCPublic proof-of-concept repositories on GitHub reference this CVE.look it up ↗
Advisory coverage (1)
- criticalexploitedCVE-2022-39197: Fortra Cobalt Strike Teamserver Cross-Site Scripting (XSS) Vulnerabilitycisa-kev · 2023-03-30
External references
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[](https://www.csirts.com/cve/CVE-2022-39197)