CVE-2026-53966Network attack vectorHinoki check available

Script-right escalation via unchecked Live Data save

Published Sep 15, 2026 · Updated Sep 15, 2026

Missing authorization in XWiki Platform Live Data allows remote authenticated users with page-edit rights to gain script right. ModelBridge.saveDocument directly saved the modified document without calling checkSavingDocument, bypassing normal save-time authorization and event-listener checks. Page-edit permission is sufficient to alter page rights, enabling dangerous Velocity execution and unfiltered HTML or JavaScript delivery to clients.

CVSS severity7.1
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Missing authorization in XWiki Platform Live Data allows remote authenticated users with page-edit rights to gain script right. ModelBridge.saveDocument directly saved the modified document without calling checkSavingDocument, bypassing normal save-time authorization and event-listener checks. Page-edit permission is sufficient to alter page rights, enabling dangerous Velocity execution and unfiltered HTML or JavaScript delivery to clients.

The record

CVE
CVE-2026-53966
Published
Sep 15, 2026
Updated
Sep 15, 2026
Vendor
CryptPad
Product
XWiki Platform
Classifications
CWE-862, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 13.4-rc-1, < 16.10.17
  2. Affected versionversion=>= 17.0.0-rc-1, < 17.4.10
  3. Affected versionversion=>= 17.5.0-rc-1, < 17.10.4
  4. Affected versionversion=>= 18.0.0-rc-1, < 18.1.0-rc-1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

CryptPad · XWiki Platformversion=>= 13.4-rc-1, < 16.10.17; version=>= 17.0.0-rc-1, < 17.4.10; version=>= 17.5.0-rc-1, < 17.10.4; version=>= 18.0.0-rc-1, < 18.1.0-rc-1

Published CVSS scores

7.1GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo