CVE-2025-49583

Description

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.

CVSS v3.1 Score

3.5

LOW

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

Weakness Type (CWE)

CWE-270 CWE-270

CWE-357 CWE-357

Affected Products

Vendor	Product	Versions
xwiki	xwiki	< 15.10.16
xwiki	xwiki	16.0.0 — 16.4.7
xwiki	xwiki	16.5.0 — 16.10.2

References

Advisories & Patches

https://github.com/xwiki/xwiki-platform/commit/3d96bf3ceb167bf0213d63f0be1f7e1732eb0a92 https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-ff6v-w58f-v97w https://jira.xwiki.org/browse/XWIKI-22471

Exploits

https://jira.xwiki.org/browse/XWIKI-22471

Frequently Asked Questions

What is CVE-2025-49583? +

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. It has a CVSS v3.1 base score of 3.5 (LOW).

How severe is CVE-2025-49583? +

CVE-2025-49583 has a CVSS v3.1 score of 3.5 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

What products are affected by CVE-2025-49583? +

CVE-2025-49583 affects products from xwiki, specifically: xwiki. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-49583? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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