Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learningUpgrade org.xwiki.platform:xwiki-platform-administration-ui
to version 14.10.15, 15.5.2, 15.7-rc-1 or higher.
Affected versions of this package are vulnerable to Cross-Site Request Forgery (CSRF) via the XWiki.ConfigurableClass
. Exploiting this vulnerability allows complete remote code execution with programming rights, thus compromising the confidentiality, integrity, and availability of the entire XWiki installation by tricking an admin user into visiting a crafted URL or embedding the URL as an image source in wiki content. This is only exploitable if the user visiting the crafted URL has edit rights on at least one configuration section.
The vulnerability can be mitigated by manually applying the patch to the document XWiki.ConfigurableClass
.
<xwiki-host>/xwiki/bin/view/%22%3E%7B%7B%2Fhtml%7D%7D%7B%7Basync%20context%3D%22request/parameters%22%7D%7D%7B%7Bvelocity%7D%7D%23evaluate(%24request/eval)/?sheet=XWiki.ConfigurableClass&xpage=view&eval=$services.logging.getLogger(%22attacker%22).error(%22Attack%20success%20$hasProgramming%22)
Where <xwiki-host>
is the URL of your XWiki installation.