CVE-2023-29526Public exploitNetwork attack vector

Restricted-page disclosure via nested async display macros

Published Apr 18, 2023 · Updated Feb 5, 2025

Access control bypass in affected XWiki Platform releases allows remote attackers to read restricted pages through nested macros. The async macro fails to preserve the rendering context's restricted flag, so an embedded display macro renders a referenced page without enforcing the viewer's access rights. Exploitation requires permission to post macro-bearing content; guest access requires comments enabled for guests, and the demonstrated consequence is disclosure of otherwise unreadable pages.

CVSS severity9.9
Critical
EPSS probability1.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Access control bypass in affected XWiki Platform releases allows remote attackers to read restricted pages through nested macros. The async macro fails to preserve the rendering context's restricted flag, so an embedded display macro renders a referenced page without enforcing the viewer's access rights. Exploitation requires permission to post macro-bearing content; guest access requires comments enabled for guests, and the demonstrated consequence is disclosure of otherwise unreadable pages.

The record

CVE
CVE-2023-29526
Published
Apr 18, 2023
Updated
Feb 5, 2025
Vendor
CryptPad
Product
XWiki Platform
Classifications
CWE-74, CWE-284, T1190
Attack vector
network
Privileges
unauthenticated

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=>= 10.11.1, < 13.10.11
  2. Affected versionversion=>= 14.0.0, < 14.4.8
  3. Affected versionversion=>= 14.5.0, < 14.10.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CryptPad · XWiki Platformversion=>= 10.11.1, < 13.10.11; version=>= 14.0.0, < 14.4.8; version=>= 14.5.0, < 14.10.3

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-284Improper Access Control
T1190Exploit Public-Facing Application

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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