CVE-2023-34464Public exploitNetwork attack vector

Stored script execution via HTML-typed plain output

Published Jun 23, 2023 · Updated Dec 5, 2024

Stored XSS in XWiki Platform allows remote authenticated users to execute scripts through a crafted editable wiki document. The rendercontent.vm template emits plain-syntax document output without changing the HTTP content type from HTML, so browsers interpret stored markup as active content. Exploitation requires document-edit rights and a victim to open a displaycontent or rendercontent URL; programming rights expose the installation to actions under that victim account.

CVSS severity9.0
Critical
EPSS probability0.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in XWiki Platform allows remote authenticated users to execute scripts through a crafted editable wiki document. The rendercontent.vm template emits plain-syntax document output without changing the HTTP content type from HTML, so browsers interpret stored markup as active content. Exploitation requires document-edit rights and a victim to open a displaycontent or rendercontent URL; programming rights expose the installation to actions under that victim account.

The record

CVE
CVE-2023-34464
Published
Jun 23, 2023
Updated
Dec 5, 2024
Vendor
CryptPad
Product
XWiki Platform
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 5, 2024Record 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=org.xwiki.platform:xwiki-platform-web >= 2.2.1, < 14.4.8
  2. Affected versionversion=org.xwiki.platform:xwiki-platform-web-templates < 14.4.8
  3. Affected versionversion=org.xwiki.platform:xwiki-platform-web-templates >= 14.5, < 14.10.5
  4. Affected versionversion=org.xwiki.platform:xwiki-platform-web-templates >= 15.0-rc-1, < 15.1-rc-1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

CryptPad · XWiki Platformversion=org.xwiki.platform:xwiki-platform-web >= 2.2.1, < 14.4.8; version=org.xwiki.platform:xwiki-platform-web-templates < 14.4.8; version=org.xwiki.platform:xwiki-platform-web-templates >= 14.5, < 14.10.5; version=org.xwiki.platform:xwiki-platform-web-templates >= 15.0-rc-1, < 15.1-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')
T1204.001User Execution: Malicious Link

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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