CVE-2020-15252 : In XWiki before version 12.5 and 11.10.6, any user with SCRIPT right (EDIT right before XWiki 7.4) can gain access to th

In XWiki before version 12.5 and 11.10.6, any user with SCRIPT right (EDIT right before XWiki 7.4) can gain access to the application server Servlet context which contains tools allowing to instantiate arbitrary Java objects and invoke methods that may lead to arbitrary code execution. This is patched in XWiki 12.5 and XWiki 11.10.6.

Published 2020-10-16 17:15:12

Updated 2021-11-18 16:16:48

Source GitHub, Inc.

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2020-15252

EPSS FAQ

1.18%

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

~ 85 %

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

CVSS scores for CVE-2020-15252

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
9.0	HIGH	AV:N/AC:L/Au:S/C:C/I:C/A:C	8.0	10.0	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: Complete Integrity Impact: Complete Availability Impact: Complete
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
8.5	HIGH	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H	1.8	6.0	GitHub, Inc.
Attack Vector: Network Attack Complexity: High Privileges Required: Low User Interaction: None Scope: Changed Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2020-15252

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: nvd@nist.gov (Primary)

CWE-94 Improper Control of Generation of Code ('Code Injection')

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

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

References for CVE-2020-15252

https://jira.xwiki.org/browse/XWIKI-17141

[XWIKI-17141] Server-Side Template Injection (Velocity) - XWiki.org JIRA
Exploit;Vendor Advisory
https://jira.xwiki.org/browse/XWIKI-17423

[XWIKI-17423] It's possible to access the ServletContext through Context#getRequest - XWiki.org JIRA
Vendor Advisory
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-5hv6-mh8q-q9v8

Users with SCRIPT right can access the application server instance manager and create arbitrary Java objects through $xcontext.request and $context.request binding · Advisory · xwiki/xwiki-platform ·
Third Party Advisory

Products affected by CVE-2020-15252

Xwiki » Xwiki
Versions before (<) 11.10.6
cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*
Matching versions
Xwiki » Xwiki
Versions from including (>=) 12.0 and before (<) 12.5
cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*
Matching versions

Vulnerability Details : CVE-2020-15252

Exploit prediction scoring system (EPSS) score for CVE-2020-15252

CVSS scores for CVE-2020-15252

CWE ids for CVE-2020-15252

References for CVE-2020-15252

Products affected by CVE-2020-15252