Summary
Workarounds
The patch can be manually applied without upgrading (or restarting) the instance.
References
- https://jira.xwiki.org/browse/XWIKI-21095
- https://github.com/xwiki/xwiki-platform/commit/04e325d57d4bcb6ab79bddcafbb19032474c2a55
Attribution
We thank Agostino Parentela, Vulnerability Management Engineer of TicketOne S.p.A., [email protected] for reporting this vulnerability.
Impact
XWiki is vulnerable to reflected cross-site scripting (RXSS) via the rev parameter that is used in the content of the content menu without escaping. If an attacker can convince a user to visit a link with a crafted parameter, this allows the attacker to execute arbitrary actions in the name of the user, including remote code (Groovy) execution in the case of a user with programming right, compromising the confidentiality, integrity and availability of the whole XWiki installation.
The vulnerability can be demonstrated by opening <xwiki-host>/xwiki/bin/view/Main/?rev=xar%3Aorg.xwiki.platform%3Axwiki-platform-distribution-flavor-common%2F15.5%25%25%22%3e%3cscript%3ealert(1)%3c%2fscript%3e where <xwiki-host> is the URL of your XWiki installation. If an alert is displayed, the installation is vulnerable.
Untrusted input is rendered as active markup in a victim's browser, which can run script in their session. Typical impact: session or credential theft, and actions taken as the user.
CVE-2023-46732 has a CVSS score of 9.6 (Critical). The vector is network-reachable, no privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (14.10.14, 15.5.1); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
Remediation advice
This has been patched in XWiki 15.6 RC1, 15.5.1 and 14.10.14.
Frequently Asked Questions
- What is CVE-2023-46732? CVE-2023-46732 is a critical-severity cross-site scripting (XSS) vulnerability in org.xwiki.platform:xwiki-platform-flamingo-skin-resources (maven), affecting versions >= 9.7-rc-1, < 14.10.14. It is fixed in 14.10.14, 15.5.1. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.
- How severe is CVE-2023-46732? CVE-2023-46732 has a CVSS score of 9.6 (Critical). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of org.xwiki.platform:xwiki-platform-flamingo-skin-resources are affected by CVE-2023-46732? org.xwiki.platform:xwiki-platform-flamingo-skin-resources (maven) versions >= 9.7-rc-1, < 14.10.14 is affected.
- Is there a fix for CVE-2023-46732? Yes. CVE-2023-46732 is fixed in 14.10.14, 15.5.1. Upgrade to this version or later.
- Is CVE-2023-46732 exploitable, and should I be worried? Whether CVE-2023-46732 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2023-46732 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2023-46732?
- Upgrade
org.xwiki.platform:xwiki-platform-flamingo-skin-resourcesto 14.10.14 or later - Upgrade
org.xwiki.platform:xwiki-platform-flamingo-skin-resourcesto 15.5.1 or later
- Upgrade