CVE-2023-29526: Xwiki platform oldcore XWiki Platform's Async And Display Vulnerability

CRITICAL
Advisory Identifier: GHSA-gpq5-7p34-vqx5
CVSS 9.9
CWE-284 CWE-74
Published
Advisory Summary

CVE-2023-29526 is a CRITICAL (CVSS 9.9) xwiki platform's async and display vulnerability (CWE-284: Improper Access Control) affecting Xwiki platform oldcore libraries in the Maven ecosystem. The issue involves xwiki platform's async and display macro allow displaying and interacting with any document in restricted mode. Remediation is available by upgrading affected packages to version 13.10.11, 14.4.8, 14.10.3.

CVE-2023-29526 at a Glance

CVE Identifier CVE-2023-29526
GHSA Identifier GHSA-gpq5-7p34-vqx5
Severity CRITICAL
CVSS v3.1 Base Score 9.9
CWE Classification CWE-284: Improper Access Control
Affected Product Xwiki platform oldcore
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.9

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:N/S:C/C:H/I:H/A:H).

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

How to Fix CVE-2023-29526

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: 13.10.11
<dependency>
    <groupId>org.xwiki.platform</groupId>
    <artifactId>xwiki-platform-oldcore</artifactId>
    <version>13.10.11</version>
</dependency>
org.xwiki.platform:xwiki-platform-oldcore fixed: 14.4.8
<dependency>
    <groupId>org.xwiki.platform</groupId>
    <artifactId>xwiki-platform-oldcore</artifactId>
    <version>14.4.8</version>
</dependency>
org.xwiki.platform:xwiki-platform-oldcore fixed: 14.10.3
<dependency>
    <groupId>org.xwiki.platform</groupId>
    <artifactId>xwiki-platform-oldcore</artifactId>
    <version>14.10.3</version>
</dependency>
org.xwiki.platform:xwiki-platform-rendering-async-macro fixed: 13.10.11
<dependency>
    <groupId>org.xwiki.platform</groupId>
    <artifactId>xwiki-platform-rendering-async-macro</artifactId>
    <version>13.10.11</version>
</dependency>
org.xwiki.platform:xwiki-platform-rendering-async-macro fixed: 14.4.8
<dependency>
    <groupId>org.xwiki.platform</groupId>
    <artifactId>xwiki-platform-rendering-async-macro</artifactId>
    <version>14.4.8</version>
</dependency>
org.xwiki.platform:xwiki-platform-rendering-async-macro fixed: 14.10.3
<dependency>
    <groupId>org.xwiki.platform</groupId>
    <artifactId>xwiki-platform-rendering-async-macro</artifactId>
    <version>14.10.3</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-2023-29526, 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 13.10.11), 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-284: Improper Access Control, where the product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. 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 display any page you cannot access through the combination of the async and display macro. Steps to reproduce: 1. Enable comments for guests by giving guests comment rights 2. As a guest, create a comment with content ```{{async}}{{display reference="Menu.WebHome" /}}{{/async}}``` 3. Open the comments viewer from the menu (appends ?viewer=comments to the URL) -> the `Menu.WebHome` is displayed while the expectation would be to have an error that the current user is not allowed to see it ### Patches The vulnerability has been patched in XWiki 15.0-rc-1, 14.10.3, 14.4.8, and 13.10.11. ### Workarounds There is no known workaround. ### References https://jira.xwiki.org/browse/XWIKI-20394 https://jira.xwiki.org/browse/XRENDERING-694 ### For more information If you have any questions or comments about this advisory: * Open an issue in [Jira XWiki.org](https://jira.xwiki.org/) * Email us at [Security Mailing List](mailto:security@xwiki.org)

CVE-2023-29526 Affected Xwiki platform oldcore Versions

6 component(s)
Fixed Versions:
13.10.1114.4.814.10.3
Product / Package Ecosystem Affected Versions Fixed Version
org.xwiki.platform:xwiki-platform-oldcore
Maven
≥ 10.11.1
< 13.10.11
13.10.11
org.xwiki.platform:xwiki-platform-oldcore
Maven
≥ 14.0-rc-1
< 14.4.8
14.4.8
org.xwiki.platform:xwiki-platform-oldcore
Maven
≥ 14.5
< 14.10.3
14.10.3
org.xwiki.platform:xwiki-platform-rendering-async-macro
Maven
≥ 10.11.1
< 13.10.11
13.10.11
org.xwiki.platform:xwiki-platform-rendering-async-macro
Maven
≥ 14.0-rc-1
< 14.4.8
14.4.8
org.xwiki.platform:xwiki-platform-rendering-async-macro
Maven
≥ 14.5
< 14.10.3
14.10.3

References

Frequently Asked Questions

What is CVE-2023-29526?
CVE-2023-29526 is a security vulnerability in Xwiki platform oldcore involving XWiki Platform's async and display macro allow displaying and interacting with any document in restricted mode under CWE-284: Improper Access Control.
Which Xwiki platform oldcore versions are affected?
Affected versions include releases prior to 13.10.11, 14.4.8, 14.10.3 across affected packages: org.xwiki.platform:xwiki-platform-oldcore, org.xwiki.platform:xwiki-platform-rendering-async-macro.
What version fixes CVE-2023-29526?
Upgrading to 13.10.11, 14.4.8, 14.10.3 (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 13.10.11, 14.4.8, 14.10.3. Upgrade your dependency to 13.10.11, 14.4.8, 14.10.3 or later.
Is xwiki-platform-rendering-async-macro affected?
Yes, org.xwiki.platform:xwiki-platform-rendering-async-macro is affected in releases prior to 13.10.11, 14.4.8, 14.10.3. Upgrade your dependency to 13.10.11, 14.4.8, 14.10.3 or later.
What is the CVSS score of CVE-2023-29526?
CVE-2023-29526 has a CVSS v3.1 base score of 9.9 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2023-29526?
CVE-2023-29526 is classified under CWE-284: Improper Access Control (The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.).
How can I check Maven dependencies for CVE-2023-29526?
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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-gpq5-7p34-vqx5",
  "modified" : "2023-04-20T22:24:46Z",
  "published" : "2023-04-20T22:24:46Z",
  "aliases" : [ "CVE-2023-29526" ],
  "summary" : "XWiki Platform's async and display macro allow displaying and interacting with any document in restricted mode",
  "details" : "### Impact\n\nIt's possible to display any page you cannot access through the combination of the async and display macro. \n\nSteps to reproduce:\n\n1. Enable comments for guests by giving guests comment rights\n2. As a guest, create a comment with content ```{{async}}{{display reference=\"Menu.WebHome\" /}}{{/async}}```\n3. Open the comments viewer from the menu (appends ?viewer=comments to the URL)\n\n-> the `Menu.WebHome` is displayed while the expectation would be to have an error that the current user is not allowed to see it\n\n### Patches\n\nThe vulnerability has been patched in XWiki 15.0-rc-1, 14.10.3, 14.4.8, and 13.10.11.\n\n### Workarounds\n\nThere is no known workaround.\n\n### References\n\nhttps://jira.xwiki.org/browse/XWIKI-20394\nhttps://jira.xwiki.org/browse/XRENDERING-694\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in [Jira XWiki.org](https://jira.xwiki.org/)\n* Email us at [Security Mailing List](mailto:security@xwiki.org)",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-oldcore"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "10.11.1"
      }, {
        "fixed" : "13.10.11"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-oldcore"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "14.0-rc-1"
      }, {
        "fixed" : "14.4.8"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-oldcore"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "14.5"
      }, {
        "fixed" : "14.10.3"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-rendering-async-macro"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "10.11.1"
      }, {
        "fixed" : "13.10.11"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-rendering-async-macro"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "14.0-rc-1"
      }, {
        "fixed" : "14.4.8"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-rendering-async-macro"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "14.5"
      }, {
        "fixed" : "14.10.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-gpq5-7p34-vqx5"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-29526"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/xwiki/xwiki-platform"
  }, {
    "type" : "WEB",
    "url" : "https://jira.xwiki.org/browse/XRENDERING-694"
  }, {
    "type" : "WEB",
    "url" : "https://jira.xwiki.org/browse/XWIKI-20394"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-284", "CWE-74" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-04-20T22:24:46Z",
    "nvd_published_at" : "2023-04-19T00:15:09Z"
  }
}