CVE-2026-48047 json
XWiki Platform vulnerable to potential arbitrary file writing using path traversal from (subwiki) admin
published 2026-05-26 5 mo ago modified 2026-10-23 16 d ago also GHSA-vgwr-23fq-pr7g , EUVD-2026-54714
- cvss
- 5.9
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 51%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- maven org.xwiki.platform:xwiki-platform-webjars-api 16.10.17, 17.4.9, 17.10.3
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- jira.xwiki.org https://jira.xwiki.org/browse/XWIKI-23902 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.9 | CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N |
| CNA | 4.0 | 5.9 | CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N/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 |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.xwiki.platform:xwiki-platform-webjars-api | >=9.6-rc-1, <16.10.17 >=17.0.0-rc-1, <17.4.9 >=17.5.0-rc-1, <17.10.3 |
16.10.17 17.4.9 17.10.3 |
Affected products
- xwiki xwiki-platform
Classification
- Weakness
-
- CWE-24 Path Traversal: '../filedir'
References
Sources
- CVE List CVE-2026-48047
- GitHub Advisory GHSA-vgwr-23fq-pr7g
- NVD CVE-2026-48047
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