CVE-2026-23734
Path traversal in XWiki may expose WEB-INF/xwiki.cfg via ssx/jsx endpoints.
Is CVE-2026-23734 being exploited?
Not confirmed. CVE-2026-23734 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 20% probability of exploitation in the next 30 days.
How severe is CVE-2026-23734?
CVE-2026-23734 is rated Critical with a CVSS score of 9.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-23734?
Yes. A fix has been recorded for CVE-2026-23734. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-23734 affect?
CVE-2026-23734 affects XWiki Platform pre-18.1.0-rc-1, 17.10.3, 17.4.9, 16.10.17. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-23734?
Upgrade to 18.1.0-rc-1 or latest 18.x.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Read access to WEB-INF/xwiki.cfg; could enable credential disclosure and potential remote code execution.
Patch when possible
- affected>= 4.2-milestone-2 and < 16.10.17
- affected>= 17.0.0-rc-1 and < 17.4.9
- affected>= 17.5.0 and < 17.10.3
- affected>= 18.0.0-rc-1 and < 18.1.0-rc-1
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.