CVE•Published 2026-04-15•Modified 2026-04-23•1 article on news•6 live references•NVD data

CVE-2026-40104Xwiki · Xwiki

Vulnerability data via NVD (ingested)

CVSS v3.1

8.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

EPSS percentile

—

Weaknesses (CWE)

CWE-770Allocation of Resources Without Limits or Throttling

Description

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Versions 1.8-rc-1, 17.0.0-rc-1 and 17.5.0-rc-1 and prior include a resource exhaustion vulnerability in REST API endpoints such as /xwiki/rest/wikis/xwiki/spaces/AnnotationCode/pages/AnnotationConfig/objects/AnnotationCode.AnnotationConfig/0/properties, which list all available pages as part of the metadata for database list properties without applying query limits. On large wikis, this can exhaust available server resources. This issue has been patched in versions 16.10.16, 17.4.8 and 17.10.1.

Timeline

Published 2026-04-15

Modified 2026-04-23

External references

NVD MITRE Exploit-DB GitHub PoC Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-40104

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Xwiki Xwiki"

All exposed Xwiki Xwiki instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Xwiki"

HTTP body or banner mentions "Xwiki" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-40104