$ cve CVE-2023-29525 JSON

CVE-2023-29525

9.9

CRITICAL · CVSS 3.1 · EPSS 77.8% (pctl 100)

Patch early

EPSS 77.8% — above the 10% action threshold.

Description

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Affected versions of xwiki are subject to code injection in the `since` parameter of the `/xwiki/bin/view/XWiki/Notifications/Code/LegacyNotificationAdministration` endpoint. This provides an XWiki syntax injection attack via the since-parameter, allowing privilege escalation from view to programming rights and subsequent code execution privilege. The vulnerability has been patched in XWiki 15.0-rc-1, 14.10.3, 14.4.8 and 14.10.3. Users are advised to upgrade. Users unable to upgrade may modify the page `XWiki.Notifications.Code.LegacyNotificationAdministration` to add the missing escaping. For versions < 14.6-rc-1 a workaround is to modify the file `<xwikiwebapp>/templates/distribution/eventmigration.wiki` to add the missing escaping.

Scoring

CVSS	9.9 (CRITICAL, v3.1)
Vector	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS	77.75% — more likely to be exploited than 100% of all CVEs
Weakness	CWE-74
On CISA KEV	no
Public exploit	none known
Published	2023-04-19
Last modified	2026-06-17

Affected (1)

Vendor	Product
xwiki	xwiki

References

→ the Explorer · watch your stack · NVD