Moodle: reflected xss risk in blog search

Description

The vulnerability was found Moodle which exists due to insufficient sanitization of user-supplied data in blog search. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website. This flaw allows a remote attacker to perform cross-site scripting (XSS) attacks.

Scores

EPSS (exploitation in 30 days)

0.85% · top 42% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.

Weakness

• CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (opens in a new tab)All about CWE-79 and its CVEs

Affected products

• moodle

  • affected 4.1.0 – < 4.1.1
  • affected 4.0.0 – < 4.0.6

Affected packages

From reviewed advisories of the GitHub Advisory Database.

• Packagistmoodle/moodleGHSA-grmj-gpwm-98ww (opens in a new tab)

References (3)

• http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-76861 (opens in a new tab)x_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=2162547 (opens in a new tab)x_transferred
• https://moodle.org/mod/forum/discuss.php?d=443273#p1782022 (opens in a new tab)x_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisory GHSA-grmj-gpwm-98ww (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2023-23922](https://trackcve.app/badge/CVE-2023-23922.svg)](https://trackcve.app/cve/CVE-2023-23922)

Record last updated 2 Aug 2024, 10:42 UTC.