CVE-2023-37277
CriticalCVSS 9.6Exploitation Probability (EPSS)
Low risk45th percentile - higher than 45% of all known CVEs
Summary
XWiki Platform has a vulnerability that allows remote code execution via a cross-site request forgery (CSRF) attack using the REST API. Exploitation of this flaw by a user with programming rights can impact the integrity, availability, and confidentiality of the entire XWiki installation.
Risk Assessment
This vulnerability poses a serious risk to organizations as it can lead to unauthorized access and manipulation of data within the system. In particular, the lack of default SameSite cookie restrictions in Firefox and Safari increases the risk of CSRF attacks.
Recommendation
It is recommended to upgrade to XWiki versions 14.10.8 or 15.2, which require a CSRF token header for vulnerable request types. Additionally, it is advisable to configure browsers to enable SameSite cookie restrictions by default.
Original NVD description (English source)
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. The REST API allows executing all actions via POST requests and accepts `text/plain`, `multipart/form-data` or `application/www-form-urlencoded` as content types which can be sent via regular HTML forms, thus allowing cross-site request forgery. With the interaction of a user with programming rights, this allows remote code execution through script macros and thus impacts the integrity, availability and confidentiality of the whole XWiki installation. For regular cookie-based authentication, the vulnerability is mitigated by SameSite cookie restrictions but as of March 2023, these are not enabled by default in Firefox and Safari. The vulnerability has been patched in XWiki 14.10.8 and 15.2 by requiring a CSRF token header for certain request types that are susceptible to CSRF attacks.