CVE-2011-4306: Moodle/moodle Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-r729-mx2r-j26j
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CWE-79
Published
Advisory Summary

CVE-2011-4306 is a MODERATE cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Moodle/moodle libraries in the Packagist ecosystem. The issue involves moodle xss vulnerability. Remediation is available by upgrading affected packages to version 1.9.14.

CVE-2011-4306 at a Glance

CVE Identifier CVE-2011-4306
GHSA Identifier GHSA-r729-mx2r-j26j
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Moodle/moodle
Package Ecosystem Packagist
Published Date
Last Updated

How to Fix CVE-2011-4306

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

moodle/moodle fixed: 1.9.14 
Upgrade moodle/moodle to 1.9.14
Verify Direct and Transitive Dependencies

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

inspect dependencies for moodle/moodle

How to Check if You Are Affected

To determine whether your application is affected by CVE-2011-4306, inspect your project dependencies for Moodle/moodle:

inspect dependencies for moodle/moodle

Analyze the terminal output to locate any version of Moodle/moodle in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.9.14), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Moodle/moodle, 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

Cross-site scripting (XSS) vulnerability in `course/editsection.html` in Moodle 1.9.x before 1.9.14 allows remote authenticated users to inject arbitrary web script or HTML via crafted data.

CVE-2011-4306 Affected Moodle/moodle Versions

1 component(s)
Fixed Versions:
1.9.14
Product / Package Ecosystem Affected Versions Fixed Version
moodle/moodle
 Packagist
< 1.9.14
1.9.14

References

NVD — CVE-2011-4306 NVD
https://nvd.nist.gov/vuln/detail/CVE-2011-4306
Security Fix Commit FIX COMMIT
https://github.com/moodle/moodle/commit/4a2acd8c7e6c869d5fd5aa686e6e0a3f20c97f15
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=747444
git.moodle.org/gw WEB
http://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=4a2acd8c7e6c869d5fd5aa686e6e0a3f20c97f15
git.moodle.org/gw WEB
http://git.moodle.org/gw?p=moodle.git;a=commit;h=4a2acd8c7e6c869d5fd5aa686e6e0a3f20c97f15
moodle.org/mod/forum/discuss.p... WEB
http://moodle.org/mod/forum/discuss.php?d=188319

Frequently Asked Questions

What is CVE-2011-4306?
CVE-2011-4306 is a security vulnerability in Moodle/moodle involving Moodle XSS Vulnerability under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Moodle/moodle versions are affected?
Affected versions include releases prior to 1.9.14 across affected packages: moodle/moodle.
What version fixes CVE-2011-4306?
Upgrading to 1.9.14 (or the latest patched release for your respective branch) resolves the vulnerability.
Is moodle/moodle affected?
Yes, moodle/moodle is affected in releases prior to 1.9.14. Upgrade your dependency to 1.9.14 or later.
What CWE is associated with CVE-2011-4306?
CVE-2011-4306 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check Packagist dependencies for CVE-2011-4306?
Run the dependency tree command: 'inspect dependencies for moodle/moodle'. 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-r729-mx2r-j26j",
  "modified" : "2024-01-17T15:44:25Z",
  "published" : "2022-05-13T01:13:11Z",
  "aliases" : [ "CVE-2011-4306" ],
  "summary" : "Moodle XSS Vulnerability",
  "details" : "Cross-site scripting (XSS) vulnerability in `course/editsection.html` in Moodle 1.9.x before 1.9.14 allows remote authenticated users to inject arbitrary web script or HTML via crafted data.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "moodle/moodle"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.9.14"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2011-4306"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/moodle/moodle/commit/4a2acd8c7e6c869d5fd5aa686e6e0a3f20c97f15"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=747444"
  }, {
    "type" : "WEB",
    "url" : "http://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=4a2acd8c7e6c869d5fd5aa686e6e0a3f20c97f15"
  }, {
    "type" : "WEB",
    "url" : "http://git.moodle.org/gw?p=moodle.git;a=commit;h=4a2acd8c7e6c869d5fd5aa686e6e0a3f20c97f15"
  }, {
    "type" : "WEB",
    "url" : "http://moodle.org/mod/forum/discuss.php?d=188319"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-01-17T15:44:25Z",
    "nvd_published_at" : "2012-07-11T10:26:00Z"
  }
}