CVE-2023-29523Public exploitNetwork attack vector

Authenticated code execution via unescaped HTML macro closure

Published Apr 18, 2023 · Updated Feb 5, 2025

Eval injection in XWiki Platform allows remote authenticated users with profile-edit rights to execute arbitrary server-side code. XWikiDocument.display wraps rendered field output in an HTML macro without escaping attacker-supplied closing {{/html}} syntax, allowing trailing Groovy or Python macros to be parsed and run. A user who can edit a profile or another wiki-syntax field can read and write all wiki content and execute code in the server context.

CVSS severity9.9
Critical
EPSS probability2.00%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Eval injection in XWiki Platform allows remote authenticated users with profile-edit rights to execute arbitrary server-side code. XWikiDocument.display wraps rendered field output in an HTML macro without escaping attacker-supplied closing {{/html}} syntax, allowing trailing Groovy or Python macros to be parsed and run. A user who can edit a profile or another wiki-syntax field can read and write all wiki content and execute code in the server context.

The record

CVE
CVE-2023-29523
Published
Apr 18, 2023
Updated
Feb 5, 2025
Vendor
CryptPad
Product
XWiki Platform
Classifications
CWE-95, T1059.006
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 18, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 5, 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=>= 14.0-rc-1, < 14.4.8
  2. Affected versionversion=>= 14.5, < 14.10.1
  3. Affected versionversion=>= 3.3-milestone-1, < 13.10.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

CryptPad · XWiki Platformversion=>= 14.0-rc-1, < 14.4.8; version=>= 14.5, < 14.10.1; version=>= 3.3-milestone-1, < 13.10.11

Published CVSS scores

9.9GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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-95Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
T1059.006Python

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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