`CVE-2026-48047`

Severity	5.9 Medium CVSS 4.0
Fixed in	`16.10.17`, `17.4.9`, `17.10.3`
Weakness	CWE-24
Published	7 Aug 2026
Updated	23 Oct 2026

Description

XWiki Platform WebJars API is a package for XWiki, a generic wiki platform. Starting with version 9.6-rc-1 and prior to versions 16.10.17, 17.4.9, and 17.10.3, a potential path traversal vulnerability allow an attacker who manages to get a malicious WebJar extension installed on the wiki to write arbitrary files. While the consequences could be severe like overriding configuration files and setting the superadmin password, the attack first requires that the attacker already has admin access to at least a subwiki to be able to install a malicious extension. Further, the attacker needs to publish a malicious extension in an extension repository that is configured in the instance. This vulnerability has been patched in XWiki 16.10.17, 17.4.9, 17.10.3, and 18.0.0RC1. XWiki is not aware of any workarounds except for being careful whom developers grant script and admin rights to.

Exploitation status

Proof of concept only

A proof of concept exists, but no reviewed exploit catalogue lists this CVE.

CISA KEV not listed
VulnCheck KEV not listed
CISA Vulnrichment exploitation: poc CISA recorded that an exploit has been demonstrated. Automatable: no, technical impact: partial.
Indexed PoC none indexed
EPSS 0.65% chance in 30 days

Waratek protection

Protected by Waratek

Waratek has a rule that blocks attacks on this vulnerability.

Protection full Path traversal
Action available security rule
Review automated Inferred
Record active

Decided by	A vulnerability class already blocked by an ARMR security rule
Finding	Protected by Waratek's ARMR path-traversal security rule, which blocks this class of attack at the JVM level without a rule written for this CVE specifically. The CVE's description identifies a path traversal vulnerability. Matched by description (CWE-24 was assigned, but does not settle the class on its own).
Candidate fix	https://github.com/xwiki/xwiki-platform/commit/9f747fcd3200259a1de51957d3f5f6acc8e3816c : a commit: the change itself

Decided by

A vulnerability class already blocked by an ARMR security rule

Finding

Protected by Waratek's ARMR path-traversal security rule, which blocks this class of attack at the JVM level without a rule written for this CVE specifically. The CVE's description identifies a path traversal vulnerability. Matched by description (CWE-24 was assigned, but does not settle the class on its own).

Candidate fix

https://github.com/xwiki/xwiki-platform/commit/9f747fcd3200259a1de51957d3f5f6acc8e3816c : a commit: the change itself

How to mitigate CVE-2026-48047

Upgrade the affected software to a release that fixes it: 16.10.17, 17.4.9 or 17.10.3. Until you can, Waratek RASP blocks exploitation with its path traversal rule. It runs inside the Java application, with no code changes.

Waratek RASP Runtime protection for Java applications

Affected software and releases

Maven packages

Affected and fixed versions, from OSV.dev

Package Introduced Fixed Last affected

org.xwiki.platform:xwiki-platform-webjars-api 9.6-rc-1 16.10.17 unbounded

org.xwiki.platform:xwiki-platform-webjars-api 17.0.0-rc-1 17.4.9 unbounded

org.xwiki.platform:xwiki-platform-webjars-api 17.5.0-rc-1 17.10.3 unbounded

Package	Introduced	Fixed	Last affected
`org.xwiki.platform:xwiki-platform-webjars-api`	9.6-rc-1	`16.10.17`	unbounded
`org.xwiki.platform:xwiki-platform-webjars-api`	17.0.0-rc-1	`17.4.9`	unbounded
`org.xwiki.platform:xwiki-platform-webjars-api`	17.5.0-rc-1	`17.10.3`	unbounded

Products and versions

1 product, 3 version entries

Source	Vendor	Product	Scheme	Affected versions
osv	org.xwiki.platform	xwiki-platform-webjars-api	generic	≥ 9.6 and ＜ 16.10.17 · ≥ 17.0.0 and ＜ 17.4.9 · ≥ 17.5.0 and ＜ 17.10.3

Source

Vendor

Product

Scheme

Affected versions

osv

org.xwiki.platform

xwiki-platform-webjars-api

generic

≥ 9.6 and ＜ 16.10.17 · ≥ 17.0.0 and ＜ 17.4.9 · ≥ 17.5.0 and ＜ 17.10.3

References

URL	Tags
https://github.com/xwiki/xwiki-platform/commit/9f747fcd3200259a1de51957d3f5f6acc8e3816c	commit
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-vgwr-23fq-pr7g	WEB
https://github.com/xwiki/xwiki-platform	PACKAGE
https://jira.xwiki.org/browse/XWIKI-23902	WEB

URL

Timeline

Published	2026-08-07	By the CVE Program.
NVD record modified	2026-10-23	NVD's own last-modified date for this record.

Published

2026-08-07

By the CVE Program.

NVD record modified

2026-10-23

NVD's own last-modified date for this record.

How VRT decided (17 of 24 rules ran)

17 of 24 rules ran. The rest didn't run because an earlier rule had already settled the CVE.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? the first rule that matches decides

1 rejected no match CVE Program withdrawal of this identifier

scope: Is it a vulnerability Waratek protects? the first rule that matches decides

2 armr-patch-file no match An ARMR patch file on disk for this CVE

3 armr-secure-rule-file no match An ARMR security-rule template on disk for this CVE

4 manual-classification no match A researcher's recorded decision for this specific CVE

5 manual classification no match Manual classification of this CVE in the legacy dataset

6 non-java-upstream no match A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component no match The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the JInitiator browser plug-in, the native WebLogic proxy plug-in, or a native part of Oracle Application Server or Collaboration Suite (HTTP Server, Web Cache, Internet Directory, mail and calendar servers). Oracle gives these no CPE of their own and names them only in the description.

8 java-client-side no match Oracle's own risk-matrix note saying the CVE is reached only through untrusted code in the Java sandbox (applets, Web Start) or only through a client installation of Java, so a server running its own trusted code is not exposed

9 osv-maven matched In scope Maven packages: org.xwiki.platform:xwiki-platform-webjars-api

10 cna-maven-package not reached An affected Maven artifact named by the CNA itself

11 known-cpe-product not reached An NVD CPE naming a product ARMR tracks

12 cna-cpe-product not reached A CPE the CNA published naming a tracked product. Oracle publishes these on advisory day, months before NVD.

13 oracle-advisory-family not reached A tracked product family named in Oracle's own risk matrix. CPE cannot carry a suite name, only a module.

14 cna-named-product not reached A tracked product named in words by the CVE's own CNA, on a record with no CPE yet. Apache and Eclipse publish these on advisory day, before NVD adds CPE data.

15 non-deployable-product not reached The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached

16 unmatched-product not reached No tracked product matched above, and none present at all

disposition: What do we do about one that is? every rule runs

17 patch-hint matched Mitigation candidate References include candidate fix URL (commit tier): https://github.com/xwiki/xwiki-platform/commit/9f747fcd3200259a1de51957d3f5f6acc8e3816c

18 open-source-maven skipped The affected package being open source on Maven, so the fix can be read

19 poc-derivable skipped An indexed exploit clearing the evidence bar to reverse-engineer, where there is no source to read

20 no-exploit skipped Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read

21 secure-rule-match decided it matched Protected by Waratek Description mentions "path traversal" — mitigable by an ARMR path-traversal security rule (CWE-24 does not settle the class on its own).

22 exploited-no-fix-or-poc skipped Somebody exploiting this CVE (a CISA or VulnCheck KEV listing, or a CISA verdict of active exploitation), with no fix, source code or PoC to build a rule from

23 below-action-threshold skipped Medium or Low severity, no CISA or VulnCheck KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory

24 no-exploit-published skipped Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all

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