CVE-2023-29518 : XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user with v

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user with view rights can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation. The root cause is improper escaping of `Invitation.InvitationCommon`. This page is installed by default. The vulnerability has been patched in XWiki 15.0-rc-1, 14.10.1, 14.4.8, and 13.10.11. Users are advised to upgrade. There are no known workarounds for this issue.

Published 2023-04-19 00:15:09

Updated 2023-04-28 17:40:39

Source GitHub, Inc.

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2023-29518

EPSS FAQ

0.17%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 53 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-29518

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	2.8	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
9.9	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L	3.1	6.0	GitHub, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Changed Confidentiality: High Integrity: High Availability: Low

CWE ids for CVE-2023-29518

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

Assigned by: security-advisories@github.com (Primary)

References for CVE-2023-29518

https://jira.xwiki.org/browse/XWIKI-20283

[XWIKI-20283] Privilege escalation (PR) from view right using Invitation.InvitationCommon - XWiki.org JIRA
Exploit;Issue Tracking;Patch;Vendor Advisory
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-px54-3w5j-qjg9

Privilege escalation (PR) from view right using Invitation.InvitationCommon · Advisory · xwiki/xwiki-platform · GitHub
Exploit;Patch;Vendor Advisory
https://github.com/xwiki/xwiki-platform/commit/3d055a0a5ec42fdebce4d71ee98f94553fdbfebf

XWIKI-20283: Improved escaping on Invitation.InvitationCommon · xwiki/xwiki-platform@3d055a0 · GitHub
Patch

Products affected by CVE-2023-29518

Xwiki » Xwiki
Versions from including (>=) 14.5 and before (<) 14.10.1
cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*
Matching versions
Xwiki » Xwiki
Versions before (<) 13.10.11
cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*
Matching versions
Xwiki » Xwiki
Versions from including (>=) 14.0 and before (<) 14.4.8
cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*
Matching versions

Vulnerability Details : CVE-2023-29518

Exploit prediction scoring system (EPSS) score for CVE-2023-29518

CVSS scores for CVE-2023-29518

CWE ids for CVE-2023-29518

References for CVE-2023-29518

Products affected by CVE-2023-29518