CVE-2023-40176
MediumXWiki Platform Stored Cross-site Scripting in the user profile via the timezone displayer
Published Aug 21, 2023 · Updated Aug 12, 2026 · Also known as GHSA-h8cm-3v5f-rgp6
Key Facts
Patch immediately- CVE-2023-40176 is a medium-severity vulnerability (CVSS 5.4 v3.1) affecting Xwiki, org.xwiki.platform:xwiki-platform-web-templates (maven), xwiki-platform.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 80% probability of exploitation in the next 30 days.
- Fixed versions are available, including org.xwiki.platform:xwiki-platform-web-templates 14.10.5, Xwiki 14.10.5.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
5.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS (30-day exploit likelihood)
80%
Higher than 99.6% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
Get the full CVE-2023-40176 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any registered user can exploit a stored XSS through their user profile by setting the payload as the value of the time zone user preference. Even though the time zone is selected from a drop down (no free text value) it can still be set from JavaScript (using the browser developer tools) or by calling the save URL on the user profile with the right query string. Once the time zone is set it is displayed without escaping which means the payload gets executed for any user that visits the malicious user profile, allowing the attacker to steal information and even gain more access rights (escalation to programming rights). This issue is present since version 4.1M2 when the time zone user preference was introduced. The issue has been fixed in XWiki 14.10.5 and 15.1RC1.
Affected Products
6 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| XwikiXwiki | 15.0, 15.0-rc1, 4.1-milestone2 | 14.10.5 |
| org.xwiki.platform:xwiki-platform-web-templatesmaven | >= 4.1-milestone-2 | 14.10.5 |
| xwiki-platform | >= >= 4.1-milestone-2, < 14.10.5 | n/a |
Patched Releases
org.xwiki.platform:xwiki-platform-web-templates
14.10.5
Xwiki
14.10.5
Timeline
Publicly disclosed
Aug 21, 2023
Last updated
Aug 12, 2026
Weakness Type
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
References
- advisoryGHSA advisory
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2023/40xxx/CVE-2023-40176.json
- advisoryhttps://jira.xwiki.org/browse/XWIKI-7847
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2023-40176
- patchhttps://github.com/xwiki/xwiki-platform/commit/d11ca5d781f8a42a85bc98eb82306c1431e764d4
FAQ
Common Questions.
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it.
Affected: Xwiki versions 15.0, 15.0-rc1, 4.1-milestone2; org.xwiki.platform:xwiki-platform-web-templates (maven) versions >= 4.1-milestone-2; xwiki-platform versions >= >= 4.1-milestone-2, < 14.10.5. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including org.xwiki.platform:xwiki-platform-web-templates 14.10.5, Xwiki 14.10.5.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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