2Xyo

**Name of the Vulnerable Software and Affected Versions** Canarytokens (affected versions not specified) **Description** A Cross-Site Scripting vulnerability was identified in the history page of triggered Canarytokens. This permits an attacker who recognised an HTTP-based Canarytoken (a URL) to execute Javascript in the Canarytoken's history page (domain: canarytokens.org) when the history page is later visited by the Canarytoken's creator. This issue could be used to disable or delete the affected Canarytoken, or view its activation history. It might also be used as a stepping stone towards revealing more information about the Canarytoken's creator to the attacker. For example, an attacker could recover the email address tied to the Canarytoken, or place Javascript on the history page that redirect the creator towards an attacker-controlled Canarytoken to show the creator's network location. An attacker could only act on the discovered Canarytoken. This issue did not expose other Canarytokens or other Canarytoken creators. No signs of successful exploitation of this vulnerability have been found. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.