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CVE-2011-4294: Improper Input Validation

May 13, 2022 (updated January 17, 2024)

The error-message functionality in Moodle 1.9.x before 1.9.13, 2.0.x before 2.0.4, and 2.1.x before 2.1.1 does not ensure that a continuation link refers to an http or https URL for the local Moodle instance, which might allow attackers to trick users into visiting arbitrary web sites via unspecified vectors.

References

  • git.moodle.org/gw?p=moodle.git;a=commit;h=8f9f666c902cb30ef6f519353f38c45a29fdf4a6
  • moodle.org/mod/forum/discuss.php?d=182737
  • openwall.com/lists/oss-security/2011/11/14/1
  • github.com/advisories/GHSA-hxmp-8f47-x9fc
  • github.com/moodle/moodle/commit/18c2fcf8f19e00f0e89421d8fd8b7486a6dc6f79
  • github.com/moodle/moodle/commit/417fdfab6bbdcfc3f5b64704ec06912ae9cd1050
  • github.com/moodle/moodle/commit/8f9f666c902cb30ef6f519353f38c45a29fdf4a6
  • nvd.nist.gov/vuln/detail/CVE-2011-4294

Code Behaviors & Features

Detect and mitigate CVE-2011-4294 with GitLab Dependency Scanning

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Affected versions

All versions before 1.9.13, all versions starting from 2.0 before 2.0.4, all versions starting from 2.1 before 2.1.1

Fixed versions

  • 1.9.13
  • 2.0.4
  • 2.1.1

Solution

Upgrade to versions 1.9.13, 2.0.4, 2.1.1 or above.

Impact 5.8 MEDIUM

AV:N/AC:M/Au:N/C:N/I:P/A:P

Learn more about CVSS

Weakness

  • CWE-20: Improper Input Validation

Source file

packagist/moodle/moodle/CVE-2011-4294.yml

Spotted a mistake? Edit the file on GitLab.

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