CVE-2025-49583

What it is

XWiki is a generic wiki platform. When a user without script right creates a document with an `XWiki.Notifications.Code.NotificationEmailRendererClass` object, and later an admin edits and saves that document, the email templates in this object will be used for notifications. No malicious code can be executed, though, as while these templates allow Velocity code, the existing generic analyzer already warns admins before editing Velocity code. The main impact would thus be to send spam, e.g., with phishing links to other users or to hide notifications about other attacks. Note that warnings before editing documents with dangerous properties have only been introduced in XWiki 15.9, before that version, this was a known issue and the advice was simply to be careful. This has been patched in XWiki 16.10.2, 16.4.7 and 15.10.16 by adding an analysis for the respective XClass properties.

At a glance

Exploitability

Can be exploited over the network with a low-privilege account, but needs a user to act. Limited direct impact.

Exploit odds

0.3% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2025-06-13 17:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 09:31 UTC Last updatedMost recent change to the record

Details

Published

2025-06-13 17:15 UTC

Last modified

2026-06-17 09:31 UTC

Exploit probability

0.3% · EPSS, next 30 days

Weakness

CWE-270

Record status

Analyzed

Affected

• Xwiki < 15.10.16
• Xwiki < 16.4.7
• Xwiki < 16.10.2

Attack profile CVSS 4.0 · 5.1

Attack vector

Network

Complexity

Low

Attack requirements

None

Privileges needed

Low

User interaction

Passive

Confidentiality

None

Integrity

None

Availability

None