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CVE-2023-29528

22
FAUCET Score

CVE-2023-29528 is a critical cross-site scripting (XSS) vulnerability affecting XWiki Commons, specifically within its HTML cleaner's "restricted" mode. This flaw allows for the injection of arbitrary HTML and JavaScript via invalid HTML comments. When a privileged user with programming rights views such a comment, the malicious JavaScript executes, leading to server-side code execution and impacting the confidentiality, integrity, and availability of the XWiki instance. The vulnerability carries a CVSS score of 9.0 (CRITICAL), indicating a high-impact, easily exploitable threat. It has a network attack vector, low attack complexity, and requires user interaction, but the potential for complete compromise of the system is significant. The CWE is CWE-79 (Improper Neutralization of Input During Web Page Generation). Currently, there is no evidence of active exploitation, and no public exploit code is available on platforms like Metasploit or ExploitDB. Community discussion and media coverage are minimal, suggesting low public awareness at this time.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.3, < 14.10CPE matchmatch criteria
cpe:2.3:a:xwiki:commons:*:*:*:*:*:*:*:*
4.2CPE matchmatch criteria
cpe:2.3:a:xwiki:commons:4.2:-:*:*:*:*:*:*
4.2CPE matchmatch criteria
cpe:2.3:a:xwiki:commons:4.2:milestone1:*:*:*:*:*:*
4.2CPE matchmatch criteria
cpe:2.3:a:xwiki:commons:4.2:milestone2:*:*:*:*:*:*
4.2CPE matchmatch criteria
cpe:2.3:a:xwiki:commons:4.2:milestone3:*:*:*:*:*:*

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
1.28%
Probability of exploitation in next 30 days
EPSS Percentile
67.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0128 is in the 79th percentile among its peer group of 265 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.6 Bluesky, 0.3 Mastodon, and 1.6 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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.commons:xwiki-commons-xmlFixed in: 14.10

Vendor Advisories (1)

mavenGHSA-x37v-36wv-6v6hcritical

Cross-site Scripting in org.xwiki.commons:xwiki-commons-xml

Apr 20, 2023

References

github.com / xwiki/xwiki-commons/commit/8ff1a9d7e5d7b45b690134a537d53dc05cae04ab
Patch
github.com / xwiki/xwiki-commons/security/advisories/GHSA-x37v-36wv-6v6h
Vendor Advisory
jira.xwiki.org / browse/XCOMMONS-2568
Vendor Advisory
jira.xwiki.org / browse/XWIKI-20348
ExploitVendor Advisory