XWiki Platform Remote Code Exec via Groovy Script ( 15.0-rc-1, 14.10.3)
CVE-2023-29527 Published on April 19, 2023
Code injection from account through AWM view sheet in xwiki platform
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In affected versions a user without script or programming right may edit a user profile (or any other document) with the wiki editor and add groovy script content. Viewing the document after saving it will execute the groovy script in the server context which provides code execution. This vulnerability has been patched in XWiki 15.0-rc-1 and 14.10.3. Users are advised to upgrade. There are no known workarounds for this issue.
Vulnerability Analysis
CVE-2023-29527 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. Public availability of a proof of concept (POC) exploit exists for CVE-2023-29527. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is an Injection Vulnerability?
The software constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. Software has certain assumptions about what constitutes data and control respectively. It is the lack of verification of these assumptions for user-controlled input that leads to injection problems. Injection problems encompass a wide variety of issues -- all mitigated in very different ways and usually attempted in order to alter the control flow of the process. For this reason, the most effective way to discuss these weaknesses is to note the distinct features which classify them as injection weaknesses. The most important issue to note is that all injection problems share one thing in common -- i.e., they allow for the injection of control plane data into the user-controlled data plane. This means that the execution of the process may be altered by sending code in through legitimate data channels, using no other mechanism. While buffer overflows, and many other flaws, involve the use of some further issue to gain execution, injection problems need only for the data to be parsed. The most classic instantiations of this category of weakness are SQL injection and format string vulnerabilities.
CVE-2023-29527 has been classified to as an Injection vulnerability or weakness.
Products Associated with CVE-2023-29527
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Affected Versions
xwiki-platform Version >= 7.4.4, < 14.10.3 is affected by CVE-2023-29527Vulnerable Packages
The following package name and versions may be associated with CVE-2023-29527
| Package Manager | Vulnerable Package | Versions | Fixed In |
|---|---|---|---|
| maven | org.xwiki.platform:xwiki-platform-appwithinminutes-ui | >= 7.4.4, < 14.10.3 | 14.10.3 |
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.