# CVE-2023-36468: Upgrading doesn't prevent exploiting vulnerable XWiki documents > Attackers can execute arbitrary code by accessing vulnerable old document revisions after upgrading XWiki, bypassing security fixes. - **Severity:** Critical 10.0 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`) - **Exploited in the wild:** Not known - **Login needed:** Any signed-in user - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 29 Jun 2023 - **Updated:** 26 Nov 2024 - **Also known as:** GHSA-8q9q-r9v2-644m ## What is CVE-2023-36468? CVE-2023-36468 is a critical code injection vulnerability in Xwiki Xwiki, published on 29 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim. ### Official description XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. When an XWiki installation is upgraded and that upgrade contains a fix for a bug in a document, just a new version of that document is added. In some cases, it's still possible to exploit the vulnerability that was fixed in the new version. The severity of this depends on the fixed vulnerability, for the purpose of this advisory take CVE-2022-36100/GHSA-2g5c-228j-p52x as example - it is easily exploitable with just view rights and critical. When XWiki is upgraded from a version before the fix for it (e.g., 14.3) to a version including the fix (e.g., 14.4), the vulnerability can still be reproduced by adding `rev=1.1` to the URL used in the reproduction steps so remote code execution is possible even after upgrading. Therefore, this affects the confidentiality, integrity and availability of the whole XWiki installation. This vulnerability also affects manually added script macros that contained security vulnerabilities that were later fixed by changing the script macro without deleting the versions with the security vulnerability from the history. This vulnerability doesn't affect freshly installed versions of XWiki. Further, this vulnerability doesn't affect content that is only loaded from the current version of a document like the code of wiki macros or UI extensions. This vulnerability has been patched in XWiki 14.10.7 and 15.2RC1 by forcing old revisions to be executed in a restricted mode that disables all script macros. As a workaround, admins can manually delete old revisions of affected documents. A script could be used to identify all installed documents and delete the history for them. However, also manually added and later corrected code may be affected by this vulnerability so it is easy to miss documents. Weakness: CWE-459 (Incomplete Cleanup) ## Which versions are affected by CVE-2023-36468? 4 open source packages ship an affected version, including org.xwiki.platform:xwiki-platform-oldcore. It affects 1 product. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `org.xwiki.platform:xwiki-platform-oldcore` | Maven | From 15.0-rc-1 | 15.2-rc-1 | | `org.xwiki.platform:xwiki-platform-oldcore` | Maven | From 15.0-rc-1 | 15.2-rc-1 | | `org.xwiki.platform:xwiki-platform-oldcore` | Maven | From 2.0 | 14.10.7 | | `org.xwiki.platform:xwiki-platform-oldcore` | Maven | From 2.0 | 14.10.7 | Products: Xwiki Xwiki. ## How do I fix CVE-2023-36468? Upgrade org.xwiki.platform:xwiki-platform-oldcore to a fixed version for your release line: 15.2-rc-1 or 14.10.7. ## Is CVE-2023-36468 being exploited? It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-36468 exists. ## Other vulnerabilities in Xwiki Xwiki - [CVE-2025-24893](https://insights.sbomify.com/CVE-2025-24893/): XWiki Platform Eval Injection (critical 9.8, exploited in the wild) - [CVE-2025-53836](https://insights.sbomify.com/CVE-2025-53836/): XWiki Rendering is vulnerable to RCE attacks when processing nested macros (critical 10.0) - [CVE-2024-55662](https://insights.sbomify.com/CVE-2024-55662/): XWiki allows remote code execution through the extension sheet (critical 10.0) - [CVE-2024-55877](https://insights.sbomify.com/CVE-2024-55877/): XWiki allows remote code execution from account through macro descriptions and XWiki.XWikiSyntaxMacrosList (critical 10.0) - [CVE-2024-37901](https://insights.sbomify.com/CVE-2024-37901/): XWiki Platform vulnerable to remote code execution from account via SearchSuggestConfigSheet (critical 10.0) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2023-36468 and fix it if it is affected. What it is: CVE-2023-36468 is a critical code injection vulnerability in Xwiki Xwiki, published on 29 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim. Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-36468 exists. Affected packages and fixed versions: - org.xwiki.platform:xwiki-platform-oldcore (Maven): affected from 15.0-rc-1; fixed in 15.2-rc-1 - org.xwiki.platform:xwiki-platform-oldcore (Maven): affected from 15.0-rc-1; fixed in 15.2-rc-1 - org.xwiki.platform:xwiki-platform-oldcore (Maven): affected from 2.0; fixed in 14.10.7 - org.xwiki.platform:xwiki-platform-oldcore (Maven): affected from 2.0; fixed in 14.10.7 Task: 1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies. 2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2023-36468/ (Markdown: https://insights.sbomify.com/CVE-2023-36468/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2023-36468 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-36468 - OSV: https://osv.dev/vulnerability/CVE-2023-36468 --- From sbomify Insights: https://insights.sbomify.com/CVE-2023-36468/ Summaries are generated and may contain mistakes; the official description above is the record.