CVE-2024-55877Public exploitNetwork attack vector

Authenticated code execution via unescaped macro descriptions

Published Dec 12, 2024 · Updated Dec 13, 2024

Static code injection in affected XWiki Platform releases allows remote authenticated users to execute arbitrary server code. XWiki.XWikiSyntaxMacrosList inserts an attacker-controlled XWiki.WikiMacroClass description into XWiki syntax without escaping, so embedded async and Groovy macros execute when the macro list renders. Any account can create the object without script or programming rights; viewing the macro-list page then runs code with server privileges and can compromise the installation.

CVSS severity9.9
Critical
EPSS probability1.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Static code injection in affected XWiki Platform releases allows remote authenticated users to execute arbitrary server code. XWiki.XWikiSyntaxMacrosList inserts an attacker-controlled XWiki.WikiMacroClass description into XWiki syntax without escaping, so embedded async and Groovy macros execute when the macro list renders. Any account can create the object without script or programming rights; viewing the macro-list page then runs code with server privileges and can compromise the installation.

The record

CVE
CVE-2024-55877
Published
Dec 12, 2024
Updated
Dec 13, 2024
Vendor
CryptPad
Product
XWiki Platform
Classifications
CWE-96, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 13, 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=>= 16.0.0-rc-1, < 16.4.1
  2. Affected versionversion=>= 16.5.0-rc-1, < 16.5.0
  3. Affected versionversion=>= 9.7-rc-1, < 15.10.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

CryptPad · XWiki Platformversion=>= 16.0.0-rc-1, < 16.4.1; version=>= 16.5.0-rc-1, < 16.5.0; version=>= 9.7-rc-1, < 15.10.11

Published CVSS scores

9.9GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:L/UI:N/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-96Improper Neutralization of Directives in Statically Saved Code ('Static Code Injection')
T1059Command and Scripting Interpreter

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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