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CVE-2023-40176

58
FAUCET Score

CVE-2023-40176 is a stored Cross-Site Scripting (XSS) vulnerability affecting XWiki Platform versions 4.1M2 through 14.10.4. A registered user can inject malicious JavaScript into their user profile's time zone preference, which is then executed for any user viewing the compromised profile. This medium-severity vulnerability (CVSS 5.4) allows for information theft and potential privilege escalation, though it requires user interaction (UI:R) and a low privilege level (PR:L). There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.1.1, < 14.10.5CPE matchmatch criteria
cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*
4.1CPE matchmatch criteria
cpe:2.3:a:xwiki:xwiki:4.1:milestone2:*:*:*:*:*:*
15.0CPE matchmatch criteria
cpe:2.3:a:xwiki:xwiki:15.0:-:*:*:*:*:*:*
15.0CPE matchmatch criteria
cpe:2.3:a:xwiki:xwiki:15.0:rc1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.0CRITICAL

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.3
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
78.88%
Probability of exploitation in next 30 days
EPSS Percentile
99.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.7888 is in the 100th percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
mavenpatch availablevia ghsa
Product: org.xwiki.platform:xwiki-platform-web-templatesFixed in: 14.10.5

Vendor Advisories (1)

mavenGHSA-h8cm-3v5f-rgp6medium

XWiki Platform Stored Cross-site Scripting in the user profile via the timezone displayer

Aug 21, 2023

References

github.com / xwiki/xwiki-platform/commit/d11ca5d781f8a42a85bc98eb82306c1431e764d4
Patch
github.com / xwiki/xwiki-platform/security/advisories/GHSA-h8cm-3v5f-rgp6
PatchVendor Advisory
jira.xwiki.org / browse/XWIKI-7847
Issue TrackingVendor Advisory