CVE-2023-45134Public exploitNetwork attack vector

Account-level script execution via unescaped template restriction

Published Oct 25, 2023 · Updated Sep 10, 2024

Stored XSS in XWiki Platform allows remote authenticated users to execute script as a link-opening user through a template provider. The createinline.vm template inserts a provider's attacker-controlled allowed-space restriction into an error message without XML escaping. An account that can edit its own profile can plant the provider, but a user with edit rights must open the crafted document-creation link; the script then acts with that user's rights, reaching full wiki read, write, or code execution when those rights permit.

CVSS severity9.0
Critical
EPSS probability1.83%
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 script as a link-opening user through a template provider. The createinline.vm template inserts a provider's attacker-controlled allowed-space restriction into an error message without XML escaping. An account that can edit its own profile can plant the provider, but a user with edit rights must open the crafted document-creation link; the script then acts with that user's rights, reaching full wiki read, write, or code execution when those rights permit.

The record

CVE
CVE-2023-45134
Published
Oct 25, 2023
Updated
Sep 10, 2024
Vendor
CryptPad
Product
XWiki Platform
Classifications
CWE-80, CWE-79, T1204.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 25, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 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=>= 14.0-rc-1, < 14.10.12
  2. Affected versionversion=14.0-rc-1 <14.10.12
  3. Affected versionversion=>= 15.0-rc-1, < 15.5-rc-1
  4. Affected versionversion=15.0-rc-1, <15.5-rc-1
  5. Affected versionversion=>= 2.4-milestone-2, < 3.1-milestone-1
  6. Affected versionversion=2.4-milestone-2 <3.1-milestone-1
  7. Affected versionversion=>= 3.1-milestone-1, < 13.4-rc-1
  8. Affected versionversion=3.1-milestone-1 <13.4-rc-1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

CryptPad · XWiki Platformversion=>= 14.0-rc-1, < 14.10.12; version=14.0-rc-1 <14.10.12; version=>= 15.0-rc-1, < 15.5-rc-1; version=15.0-rc-1, <15.5-rc-1; version=>= 2.4-milestone-2, < 3.1-milestone-1; version=2.4-milestone-2 <3.1-milestone-1; version=>= 3.1-milestone-1, < 13.4-rc-1; version=3.1-milestone-1 <13.4-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-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001Malicious Link

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

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