CVSS 3.1 Score 6.5 of 10 (medium)


Published Aug 4, 2023
Updated: Aug 10, 2023
CWE ID 289


CVE-2023-38487 is a vulnerability in HedgeDoc software versions prior to 1.9.9, which allows the creation of new notes with an alias matching the ID of existing notes. This effectively hides the existing note and prevents access to it. The vulnerability occurs when the 'allowFreeURL' configuration option or 'CMD_ALLOW_FREEURL' environment variable is set to true, enabling any user with appropriate permissions to make a POST request and create a new note with a matching alias. HedgeDoc does not verify if the alias corresponds to a valid ID, allowing the creation of the new note and hiding the existing one. The vulnerability poses a medium risk with high integrity impact but low availability impact, and has a CVSS base score of 6.5. To remediate this issue, users should update HedgeDoc to version 1.9.9 or later.


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