Improper limitation of a pathname to a restricted directory ('Path Traversal') issue exists in FitNesse releases prior to 20241026. If this vulnerability is exploited, an attacker may be able to know whether a file exists at a specific path, and/or obtain some part of the file contents under specific conditions.

Cross-site scripting vulnerability exists in FitNesse releases prior to 20241026. If this vulnerability is exploited, an arbitrary script may be executed on the web browser of the user who is using the product.

Improper restriction of XML external entity references vulnerability exists in FitNesse all releases, which allows a remote unauthenticated attacker to obtain sensitive information, alter data, or cause a denial-of-service (DoS) condition.

Cross-site scripting vulnerability exists in FitNesse releases prior to 20220319, which may allow a remote unauthenticated attacker to execute an arbitrary script on the web browser of the user who is using the product and accessing a link with a specially crafted certain parameter.

FitNesse all releases allows a remote authenticated attacker to execute arbitrary OS commands. Note: A contributor of FitNesse has claimed that this is not a vulnerability but a product specification and this is currently under further investigation.

Cross-site scripting vulnerability exists in FitNesse all releases, which may allow a remote unauthenticated attacker to execute an arbitrary script on the web browser of the user who is using the product and accessing a link with specially crafted multiple parameters.

Jenkins FitNesse Plugin 1.31 and earlier does not correctly escape report contents before showing them on the Jenkins UI, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by users able to control the XML input files processed by the plugin.

Jenkins FitNesse Plugin 1.30 and earlier does not configure the XML parser to prevent XML external entity (XXE) attacks.

FitNesse Wiki 20131110, 20140201, and earlier allows remote attackers to execute arbitrary commands by defining a COMMAND_PATTERN and TEST_RUNNER in the pageContent parameter when editing a page.