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Fencer Intel
high 8.0

CVE-2025-49587 json

XWiki does not require right warnings for notification displayer objects

published last yr. modified 4mo ago also EUVD-2025-18296 , GHSA-j7p2-87q3-44w7

cvss
8.0
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 39%
public exploits
0
none known

Summary

XWiki is an open-source wiki software platform. When a user without script right creates a document with an XWiki.Notifications.Code.NotificationDisplayerClass object, and later an admin edits and saves that document, the possibly malicious content of that object is output as raw HTML, allowing XSS attacks. While the notification displayer executes Velocity, the existing generic analyzer already warns admins before editing Velocity code. 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 vulnerability has been patched in XWiki 15.10.16, 16.4.7, and 16.10.2 by adding a required rights analyzer that warns the admin before editing about the possibly malicious code.

Patch / fix

  • maven org.xwiki.platform:xwiki-platform-notifications-notifiers-default 15.10.16, 16.4.7, 16.10.2
  • org.xwiki.platform xwiki-platform-notifications-notifiers-default 15.10.16, 16.4.7, 16.10.2
  • xwiki xwiki 15.10.16, 16.4.7, 16.10.2

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
last yr.

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • jira.xwiki.org https://jira.xwiki.org/browse/XWIKI-22470 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 6.4 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H
CNA 4.0 6.4 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD 3.1 8.0 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.xwiki.platform:xwiki-platform-notifications-notifiers-default
>=15.9-rc-1, <15.10.16
>=16.0.0-rc-1, <16.4.7
>=16.5.0-rc-1, <16.10.2
15.10.16
16.4.7
16.10.2

Affected products

  • xwiki xwiki-platform

Classification

Weakness
  • CWE-357 Insufficient UI Warning of Dangerous Operations

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.