CVE-2026-23734
CRITICALEPSS 97th pctlDescription
XWiki Platform is a generic wiki platform. Versions prior to 18.1.0-rc-1, 17.10.3, 17.4.9, and 16.10.17 allow access to read configuration files by using URLs such as http://localhost:8080/bin/ssx/Main/WebHome?resource=/../../WEB-INF/xwiki.cfg&minify=false, leading to Path Traversal. The vulnerability is can be exploited via resources parameter the ssx and jsx endpoints by using leading slashes. This issue has been patched in 18.1.0-rc-1, 17.10.3, 17.4.9, 16.10.17.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v4 Vector
Exploitability
Impact
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Exploit Intelligence
Very high risk: more likely to be exploited than 97% of all known CVEs.
References
Related Vulnerabilities
Other CWE-23 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-27199 | High | 7.3 | 100% | KEV + Ransom | Fix |
| CVE-2020-5410 | High | 7.5 | 96% | KEV | Fix |
| CVE-2021-40870 | Critical | 9.8 | 93% | KEV | Fix |
| CVE-2025-64446 | Critical | 9.8 | 92% | KEV | Fix |
| CVE-2020-5405 | Medium | 6.5 | 69% | - | Fix |
| CVE-2025-55752 | High | 7.5 | 67% | - | Fix |
Common questions
How do I fix CVE-2026-23734?
No published fix for CVE-2026-23734 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-23734 being actively exploited?
Not that we know of. CVE-2026-23734 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 19.6% is the estimated probability that it will be exploited in the next 30 days. That is higher than 97% of all scored CVEs.
How severe is CVE-2026-23734?
CVE-2026-23734 has a CVSS v4 base score of 9.3, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
Embed a live status badge for CVE-2026-23734
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-23.