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CVE-2023-37914

Privilege escalation (PR)/RCE from account through Invitation subject/message

9.9 CriticalFix available

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user who can view Invitation.WebHome can execute arbitrary script macros including Groovy and Python macros that allow remote code execution including unrestricted read and write access to all wiki contents. This vulnerability has been patched on XWiki 14.4.8, 15.2-rc-1, and 14.10.6. Users are advised to upgrade. Users unable to upgrade may manually apply the patch on Invitation.InvitationCommon and Invitation.InvitationConfig, but there are otherwise no known workarounds for this vulnerability.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
Low

Exploit likelihood

1.86%Up 1.8 points since Aug 18, 2023
90%50%10%1%

What each source reports

CVE List Score used 9.9

Privilege escalation (PR)/RCE from account through Invitation subject/message

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user who can view Invitation.WebHome can execute arbitrary script macros including Groovy and Python macros that allow remote code execution including unrestricted read and write access to all wiki contents. This vulnerability has been patched on XWiki 14.4.8, 15.2-rc-1, and 14.10.6. Users are advised to upgrade. Users unable to upgrade may manually apply the patch on Invitation.InvitationCommon and Invitation.InvitationConfig, but there are otherwise no known workarounds for this vulnerability.

Record
CVE-2023-37914
CVSS 3.1
9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
Weakness
CWE-94
Updated
2026-11-02
EUVDEUVD-2023-2232 9.9

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user who can view Invitation.WebHome can execute arbitrary script macros including Groovy and Python macros that allow remote code execution including unrestricted read and write access to all wiki contents. This vulnerability has been patched on XWiki 14.4.8, 15.2-rc-1, and 14.10.6. Users are advised to upgrade. Users unable to upgrade may manually apply the patch on Invitation.InvitationCommon and Invitation.InvitationConfig, but there are otherwise no known workarounds for this vulnerability.

Record
EUVD-2023-2232
CVSS 3.1
9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
Updated
2026-11-03
GitHub AdvisoriesGHSA-7954-6m9q-gpvf 9.9

XWiki Platform privilege escalation (PR)/RCE from account through Invitation subject/message

Impact

Any user who can view Invitation.WebHome can execute arbitrary script macros including Groovy and Python macros that allow remote code execution including unrestricted read and write access to all wiki contents. This can be reproduced with the following steps:

  1. Open the invitation application (Invitation.WebHome).
  2. Set the subject to {{cache}}{{groovy}}new File("/tmp/exploit.txt").withWriter { out -> out.println("Attacked from invitation!"); }{{/groovy}}{{/cache}}
  3. Click "Preview"

Patches

The vulnerability has been patched on XWiki 14.4.8, 15.2-rc-1, and 14.10.6.

Workarounds

The vulnerability can be patched manually by applying the patch on Invitation.InvitationCommon and Invitation.InvitationConfig.

References

For more information

If you have any questions or comments about this advisory:

Record
GHSA-7954-6m9q-gpvf
CVSS 3.1
9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
Weakness
CWE-94, CWE-95
Updated
2026-11-02
NVD 9.9

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user who can view Invitation.WebHome can execute arbitrary script macros including Groovy and Python macros that allow remote code execution including unrestricted read and write access to all wiki contents. This vulnerability has been patched on XWiki 14.4.8, 15.2-rc-1, and 14.10.6. Users are advised to upgrade. Users unable to upgrade may manually apply the patch on Invitation.InvitationCommon and Invitation.InvitationConfig, but there are otherwise no known workarounds for this vulnerability.

Record
CVE-2023-37914
CVSS 3.1
9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-94
Updated
2026-11-02
OSV 9.9

Privilege escalation (PR)/RCE from account through Invitation subject/message

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user who can view Invitation.WebHome can execute arbitrary script macros including Groovy and Python macros that allow remote code execution including unrestricted read and write access to all wiki contents. This vulnerability has been patched on XWiki 14.4.8, 15.2-rc-1, and 14.10.6. Users are advised to upgrade. Users unable to upgrade may manually apply the patch on Invitation.InvitationCommon and Invitation.InvitationConfig, but there are otherwise no known workarounds for this vulnerability.

Record
CVE-2023-37914
CVSS 3.1
9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
Weakness
CWE-94
Updated
2026-11-02
OSVGHSA-7954-6m9q-gpvf 9.9

XWiki Platform privilege escalation (PR)/RCE from account through Invitation subject/message

Impact

Any user who can view Invitation.WebHome can execute arbitrary script macros including Groovy and Python macros that allow remote code execution including unrestricted read and write access to all wiki contents. This can be reproduced with the following steps:

  1. Open the invitation application (Invitation.WebHome).
  2. Set the subject to {{cache}}{{groovy}}new File("/tmp/exploit.txt").withWriter { out -> out.println("Attacked from invitation!"); }{{/groovy}}{{/cache}}
  3. Click "Preview"

Patches

The vulnerability has been patched on XWiki 14.4.8, 15.2-rc-1, and 14.10.6.

Workarounds

The vulnerability can be patched manually by applying the patch on Invitation.InvitationCommon and Invitation.InvitationConfig.

References

For more information

If you have any questions or comments about this advisory:

Record
GHSA-7954-6m9q-gpvf
CVSS 3.1
9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
Weakness
CWE-94, CWE-95
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
org.xwiki.platform:xwiki-platform-invitation-ui
Maven
 2.5-m-1 up to 14.4.8
14.4.8
org.xwiki.platform:xwiki-platform-invitation-ui
Maven
 14.5 up to 14.10.6
14.10.6
org.xwiki.platform:xwiki-platform-invitation-ui
Maven
 15.0-rc-1 up to 15.2-rc-1
15.2-rc-1

History

History
RecordedChangedSources
aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-37914 is a critical vulnerability (CVSS 9.9) in Xwiki, published August 17, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.86%, the 79th percentile. Fixed in org.xwiki.platform:xwiki-platform-invitation-ui 14.4.8.

References

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