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CVE-2023-37908

26
FAUCET Score

CVE-2023-37908 is a critical cross-site scripting (XSS) vulnerability in XWiki Rendering versions 14.6-rc-1 through 14.10.3 and 15.0 Beta 1. It allows arbitrary HTML injection via invalid attribute names during XHTML rendering, leading to malicious JavaScript execution when a user hovers over a crafted link. This can result in server-side code execution with programming rights for privileged users, severely impacting confidentiality, integrity, and availability. The vulnerability has a CVSS score of 9.6 (Critical) and is easily exploitable with low attack complexity and no user interaction beyond hovering. There is currently no evidence of active exploitation, public exploit code, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
>= 14.6, < 14.10.4CPE matchmatch criteria
cpe:2.3:a:xwiki:xwiki-rendering:*:*:*:*:*:*:*:*

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
1.06%
Probability of exploitation in next 30 days
EPSS Percentile
61.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0106 is in the 68th percentile among its peer group of 834 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.8 Bluesky, 0.5 Mastodon, and 1.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
mavenpatch availablevia ghsa
Product: org.xwiki.rendering:xwiki-rendering-xmlFixed in: 14.10.4

Vendor Advisories (1)

mavenGHSA-663w-2xp3-5739critical

org.xwiki.rendering:xwiki-rendering-xml Improper Neutralization of Invalid Characters in Identifiers in Web Pages vulnerability

Oct 25, 2023

References

github.com / xwiki/xwiki-rendering/commit/f4d5acac451dccaf276e69f0b49b72221eef5d2f
Patch
github.com / xwiki/xwiki-rendering/security/advisories/GHSA-663w-2xp3-5739
ExploitPatchVendor Advisory
github.com / xwiki/xwiki-rendering/security/advisories/GHSA-6gf5-c898-7rxp
ExploitPatchVendor Advisory
jira.xwiki.org / browse/XRENDERING-697
ExploitIssue TrackingVendor Advisory