Fortra Cobalt Strike Teamserver Cross-Site Scripting (XSS) Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 30/03/2023. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| cobalt strike | < 4.7.1 | 4.7.1 |
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).
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