CVE-2023-29201Public exploitNetwork attack vector

Server-side code execution via incomplete HTML sanitization

Published Apr 15, 2023 · Updated Feb 6, 2025

Cross-site scripting in XWiki Commons allows remote authenticated users to inject JavaScript through restricted HTML cleaning. The restricted-mode cleaner removes script and style tags but retains event-handler attributes and dangerous elements such as iframe in attacker-controlled HTML. Versions from 4.2-milestone-1 before 14.6-rc-1 are affected; execution requires a user with programming rights to view the content and can lead to server-side code execution.

CVSS severity9.0
Critical
EPSS probability1.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in XWiki Commons allows remote authenticated users to inject JavaScript through restricted HTML cleaning. The restricted-mode cleaner removes script and style tags but retains event-handler attributes and dangerous elements such as iframe in attacker-controlled HTML. Versions from 4.2-milestone-1 before 14.6-rc-1 are affected; execution requires a user with programming rights to view the content and can lead to server-side code execution.

The record

CVE
CVE-2023-29201
Published
Apr 15, 2023
Updated
Feb 6, 2025
Vendor
CryptPad
Product
XWiki Commons
Classifications
CWE-79, CWE-692, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 15, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 6, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 4.2-milestone-1, < 14.6-rc-1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

CryptPad · XWiki Commonsversion=>= 4.2-milestone-1, < 14.6-rc-1

Published CVSS scores

9.0GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-692Incomplete Denylist to Cross-Site Scripting
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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