CVE-2023-34465
CRITICALCVE-2023-34465 is a critical-severity (CVSS 9.9) Improper Privilege Management vulnerability in org.xwiki.platform:xwiki-platform-mail-send-default. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether CVE-2023-34465 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
XWiki Platform's Mail.MailConfig can be edited by any user with edit rights
Blast Radius
org.xwiki.platform:xwiki-platform-mail-send-default☕org.xwiki.platform:xwiki-platform-mail-send-default☕org.xwiki.platform:xwiki-platform-mail-send-defaultReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
XWiki Platform is a generic wiki platform. Starting in version 11.8-rc-1 and prior to versions 14.4.8, 14.10.6, and 15.2, Mail.MailConfig can be edited by any logged-in user by default. Consequently, they can change the mail obfuscation configuration and view and edit the mail sending configuration, including the smtp domain name and credentials. The problem has been patched in XWiki 14.4.8, 14.10.6, and 15.1. As a workaround, the rights of the Mail.MailConfig page can be manually updated so that only a set of trusted users can view, edit and delete it (e.g., the XWiki.XWikiAdminGroup group).
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.xwiki.platform:xwiki-platform-mail-send-default | ≥ 11.8-rc-1&&< 14.4.8 | 14.4.8 |
| ☕Maven | org.xwiki.platform:xwiki-platform-mail-send-default | ≥ 14.5&&< 14.10.6 | 14.10.6 |
| ☕Maven | org.xwiki.platform:xwiki-platform-mail-send-default | ≥ 15.0-rc-1&&< 15.1 | 15.1 |
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.xwiki.platform:xwiki-platform-mail-send-default. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update org.xwiki.platform:xwiki-platform-mail-send-default to 14.4.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-34465 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether CVE-2023-34465 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to CVE-2023-34465. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2023-34465 in your dependencies?
O3 detects CVE-2023-34465 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.