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Vulnerabilities

Security incident · CVE-2022-45150

A reflected cross-site scripting vulnerability was discovered in Moodle.

Published Nov 23, 2022 · catalog updated Jun 17, 2026 · A reflected cross-site scripting

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2022-45150. EPSS is 0.74%. Act only if a listed version of A reflected cross-site scripting is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (A reflected cross-site scripting).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium6.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.74%
Remediation
Version ranges on file
Affected products
cpe fedoraproject/fedora · cpe moodle/moodle

A reflected cross-site scripting vulnerability was discovered in Moodle. This flaw exists due to insufficient sanitization of user-supplied data in policy tool. An attacker can trick the victim to open a specially crafted link that executes an arbitrary HTML and script code in user's browser in context of vulnerable website. This vulnerability may allow an attacker to perform cross-site scripting (XSS) attacks to gain access potentially sensitive information and modification of web pages.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe fedoraproject/fedora35
  • cpe fedoraproject/fedora36
  • cpe fedoraproject/fedora37
  • cpe moodle/moodle< 3.11.11
  • cpe moodle/moodle< 3.9.18
  • cpe moodle/moodle< 4.0.5

How to fix CVE-2022-45150

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2022-45150. EPSS is 0.74%. Act only if a listed version of A reflected cross-site scripting is installed.

Which versions are affected?

Compare what you have installed with 35, 36, 37, < 3.11.11, < 3.9.18, < 4.0.5. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-79: Cross-site Scripting (XSS). EPSS 0.74%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Moodle security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 23, 2022 · Monitored products — high

    Detected

    A reflected cross-site scripting vulnerability was discovered in Moodle. This flaw exists due to insufficient sanitization of user-supplied data in policy tool. An attacker can trick the victim to open a specially crafted link that executes an arbitrary HTML and script code in user's browser in context of vulnerable website. This vulnerability may allow an attacker to perform cross-site scripting

  2. Jun 17, 2026 · Monitored products — high

    Updated

    A reflected cross-site scripting vulnerability was discovered in Moodle. This flaw exists due to insufficient sanitization of user-supplied data in policy tool. An attacker can trick the victim to open a specially crafted link that executes an arbitrary HTML and script code in user's browser in context of vulnerable website. This vulnerability may allow an attacker to perform cross-site scripting

Sources

  • CVE.orgVulnerability recordCVE-2022-45150

    Official CVE identifier

    cve.org
  • Monitored products — highVendor advisoryCVE-2022-45150

    A reflected cross-site scripting vulnerability was discovered in Moodle. This flaw exists due to insufficient sanitization of user-supplied data in policy tool. An attacker can trick the victim to open a specially crafted link that executes an arbitrary HTML and script code in user's browser in context of vulnerable website. This vulnerability may allow an attacker to perform cross-site scripting

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 4, 2026
  • Monitored products — highNov 4, 2026