CVE-2023-26470: Xwiki platform oldcore Remote Code Execution Vulnerability

MODERATE
Advisory Identifier: GHSA-92wp-r7hm-42g7
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CVSS 5.7
CWE-400 CWE-787
Published
Advisory Summary

CVE-2023-26470 is a MODERATE (CVSS 5.7) remote code execution vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Xwiki platform oldcore libraries in the Maven ecosystem. The issue involves xwiki platform subject to uncontrolled resource consumption. Remediation is available by upgrading affected packages to version 14.0-rc-1.

CVE-2023-26470 at a Glance

CVE Identifier CVE-2023-26470
GHSA Identifier GHSA-92wp-r7hm-42g7
Severity MODERATE
CVSS v3.1 Base Score 5.7
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Xwiki platform oldcore
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.7

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2023-26470

To remediate this vulnerability, upgrade all affected Xwiki platform oldcore dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.xwiki.platform:xwiki-platform-oldcore fixed: 14.0-rc-1 
<dependency>
    <groupId>org.xwiki.platform</groupId>
    <artifactId>xwiki-platform-oldcore</artifactId>
    <version>14.0-rc-1</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.xwiki.platform

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2023-26470, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.xwiki.platform

Analyze the terminal output to locate any version of Xwiki platform oldcore in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 14.0-rc-1), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.xwiki.platform command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Xwiki platform oldcore, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact It's possible to make the farm unusable by adding an object to a page with a huge number (e.g. 67108863). This will most of the time fill the memory allocated to XWiki and make it unusable every time this document is manipulated. ### Patches It has been patched in XWiki 14.0 ### Workarounds There is no workaround. ### References https://jira.xwiki.org/browse/XWIKI-19223 ### For more information If you have any questions or comments about this advisory: * Open an issue in [Jira XWiki](https://jira.xwiki.org) * Email us at [our security mailing list](mailto:security@xwiki.org)

CVE-2023-26470 Affected Xwiki platform oldcore Versions

1 component(s)
Fixed Versions:
14.0-rc-1
Product / Package Ecosystem Affected Versions Fixed Version
org.xwiki.platform:xwiki-platform-oldcore
maven/org.xwiki.platform/xwiki-platform-oldcore
Maven
< 14.0-rc-1
14.0-rc-1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-92wp-r7hm-42g7
NVD — CVE-2023-26470 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-26470
Security Fix Commit FIX COMMIT
https://github.com/xwiki/xwiki-platform/commit/04e5a89d2879b160cdfaea846024d3d9c1a525e6
Security Fix Commit FIX COMMIT
https://github.com/xwiki/xwiki-platform/commit/db3d1c62fc5fb59fefcda3b86065d2d362f55164
Security Fix Commit FIX COMMIT
https://github.com/xwiki/xwiki-platform/commit/fdfce062642b0ac062da5cda033d25482f4600fa
Xwiki platform oldcore Source Repository REPOSITORY
https://github.com/xwiki/xwiki-platform
jira.xwiki.org/browse/xwiki-19223 WEB
https://jira.xwiki.org/browse/XWIKI-19223

Frequently Asked Questions

What is CVE-2023-26470?
CVE-2023-26470 is a security vulnerability in Xwiki platform oldcore involving XWiki Platform subject to Uncontrolled Resource Consumption under CWE-400: Uncontrolled Resource Consumption.
Which Xwiki platform oldcore versions are affected?
Affected versions include releases prior to 14.0-rc-1 across affected packages: org.xwiki.platform:xwiki-platform-oldcore.
What version fixes CVE-2023-26470?
Upgrading to 14.0-rc-1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is xwiki-platform-oldcore affected?
Yes, org.xwiki.platform:xwiki-platform-oldcore is affected in releases prior to 14.0-rc-1. Upgrade your dependency to 14.0-rc-1 or later.
What is the CVSS score of CVE-2023-26470?
CVE-2023-26470 has a CVSS v3.1 base score of 5.7 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2023-26470?
CVE-2023-26470 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check Maven dependencies for CVE-2023-26470?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.xwiki.platform'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-92wp-r7hm-42g7",
  "modified" : "2023-03-03T22:50:41Z",
  "published" : "2023-03-03T22:50:41Z",
  "aliases" : [ "CVE-2023-26470" ],
  "summary" : "XWiki Platform subject to Uncontrolled Resource Consumption",
  "details" : "### Impact\n\nIt's possible to make the farm unusable by adding an object to a page with a huge number (e.g. 67108863). This will most of the time fill the memory allocated to XWiki and make it unusable every time this document is manipulated.\n\n### Patches\nIt has been patched in XWiki 14.0\n\n### Workarounds\nThere is no workaround.\n\n### References\nhttps://jira.xwiki.org/browse/XWIKI-19223\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [Jira XWiki](https://jira.xwiki.org)\n* Email us at [our security mailing list](mailto:security@xwiki.org)\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-oldcore"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "14.0-rc-1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-92wp-r7hm-42g7"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-26470"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-platform/commit/04e5a89d2879b160cdfaea846024d3d9c1a525e6"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-platform/commit/db3d1c62fc5fb59fefcda3b86065d2d362f55164"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-platform/commit/fdfce062642b0ac062da5cda033d25482f4600fa"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/xwiki/xwiki-platform"
  }, {
    "type" : "WEB",
    "url" : "https://jira.xwiki.org/browse/XWIKI-19223"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400", "CWE-787" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-03-03T22:50:41Z",
    "nvd_published_at" : "2023-03-02T19:15:00Z"
  }
}