CVE-2023-40176 in the critical feed json
SXSS in the user profile via the timezone displayer
published 2023-08-21 3 y ago modified 2026-06-17 4 mo ago also GHSA-h8cm-3v5f-rgp6 , EUVD-2023-2299
- cvss
- 9.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 80.0%
- EPSS 80.0% chance of exploitation in 30 days, percentile 99.6%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- maven org.xwiki.platform:xwiki-platform-web-templates 14.10.5
- xwiki xwiki 14.10.5
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
79.99% chance of exploitation in the next 30 days, higher than 99.6% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| GitHub | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.xwiki.platform:xwiki-platform-web-templates | >=4.1-milestone-2, <14.10.5 |
14.10.5 |
Affected products
- xwiki xwiki-platform
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/xwiki/xwiki-platform/commit/d11ca5d781f8a42a85bc98eb82306c1431e764d4
web, patch
-
github.com
/xwiki/xwiki-platform/security/advisories/GHSA-h8cm-3v5f-rgp6
web, patch, vendor-advisory
-
jira.xwiki.org
/browse/XWIKI-7847
web, issue-tracking, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2023-40176
advisory
-
github.com
/xwiki/xwiki-platform
package
Sources
- CVE List CVE-2023-40176
- GitHub Advisory GHSA-h8cm-3v5f-rgp6
- NVD CVE-2023-40176
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