10

CVSS Score

3.1

-

CVSS Score

Basic Information

CVE ID

CVE-2024-21650

GHSA ID

GHSA-rj7p-xjv7-7229

EPSS Score

0.99805%

CWE

CWE-94

Published

1/8/2024

Updated

1/11/2024

KEV Status

Technology

Java

Basic Information

CVE ID

GHSA ID

EPSS Score

CWE

Published

Updated

KEV Status

Technology

Concerned about an active attack path?

Talk to our security experts and see Miggo in action.

Miggo Vulnerability Database

→

CVE-2024-21650

CVE-2024-21650: XWiki Remote Code Execution Vulnerability via User Registration

Impact

XWiki is vulnerable to a remote code execution (RCE) attack through its user registration feature. This issue allows an attacker to execute arbitrary code by crafting malicious payloads in the "first name" or "last name" fields during user registration. This impacts all installations that have user registration enabled for guests.

To reproduce, register with any username and password and the following payload as "first name": ]]{{/html}}{{async}}{{groovy}}services.logging.getLogger("attacker").error("Attack succeeded){{/groovy}}{{/async}}. In the following page that confirms the success of the registration, the full first name should be displayed, linking to the created user. If the formatting is broken and a log message with content "ERROR attacker - Attack succeeded!" is logged, the attack succeeded.

Patches

This vulnerability has been patched in XWiki 14.10.17, 15.5.3 and 15.8 RC1.

Workarounds

In the administration of your wiki, under "Users & Rights" > "Registration" set the "Registration Successful Message" to the following code:

#set($message = $services.localization.render('core.register.successful', 'xwiki/2.1', ['USERLINK', $userName]))
#set($userLink = $xwiki.getUserName("$userSpace$userName"))
{{info}}$message.replace('USERLINK', "{{html clean=false}}$userLink{{/html}}"){{/info}}

References

https://jira.xwiki.org/browse/XWIKI-21173
https://github.com/xwiki/xwiki-platform/commit/b290bfd573c6f7db6cc15a88dd4111d9fcad0d31

(GitHub Advisory)

Miggo Vulnerability Database

→

CVE-2024-21650

CVE-2024-21650:

10

CVSS Score

3.1

-

CVSS Score

Basic Information

CVE ID

CVE-2024-21650

GHSA ID

GHSA-rj7p-xjv7-7229

EPSS Score

0.99805%

CWE

CWE-94

Published

1/8/2024

Updated

1/11/2024

KEV Status

Technology

Java

Basic Information

CVE ID

GHSA ID

EPSS Score

CWE

Published

Updated

KEV Status

Technology

Technical Details

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
org.xwiki.platform:xwiki-platform-administration-ui	maven	>= 2.2, < 14.10.17	14.10.17
org.xwiki.platform:xwiki-platform-administration-ui	maven	>= 15.0-rc-1, < 15.5.3	15.5.3

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability stems from improper escaping in the registration success message template. The original code used $request.get() to concatenate user-provided first/last names into a wiki link syntax [[$fullName>>...]]. This allowed attackers to close the existing Velocity/HTML tags and inject Groovy code. The patch replaced this with $xwiki.getUserName() which properly escapes output, confirming the vulnerability was in the template's handling of raw user input. The file modification in RegistrationConfig.xml and the CWE-94/CWE-95 classifications directly point to code injection in template processing as the root cause.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

WAF Protection Rules

WAF Rule

W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.

Reasoning

*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.

10

-

Basic Information

Basic Information

Concerned about an active attack path?

CVE-2024-21650: XWiki Remote Code Execution Vulnerability via User Registration

Impact

Patches

Workarounds

References

CVE-2024-21650:

10

-

Basic Information

Basic Information

Technical Details

Technical Details

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

WAF Protection Rules

WAF Rule

Reasoning

Vulnerability IntelligenceMiggo AI

CVE-2024-21650: XWiki Remote Code Execution Vulnerability via User Registration

Impact

Patches

Workarounds

References

Basic Information

Basic Information

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

WAF Protection Rules

WAF Rule

Reasoning

10

10

Technical Details

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI