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Servers and applications

CVE-2018-10891

A flaw was found in moodle before versions 3.5.1, 3.4.4, 3.3.7, 3.1.13. When a quiz question bank is imported, it was possible for the question preview that is displayed to execute JavaScript that is written into the question bank.

Severity
High 7.3
Published
10 Jul 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
3.1.13, 3.3.7, 3.4.4, 3.5.1
Exploit chance
2.1% in the next 30 daysHigher than 81% of CVEs. EPSS by FIRST, 10 Nov 2026
Weakness
Improper input validation (CWE-20)
Attack
Over the network · No login needed · No user action needed
Attacker can
Read some data · Change some data · Slow it down
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Sources
NVD

Affected software

SoftwareAffected versions
MoodleServers and applications · cpe:a:moodle:moodle
  • From 3.1 before 3.1.13
  • From 3.3 before 3.3.7
  • From 3.4 before 3.4.4
  • From 3.5 before 3.5.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-10891
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-10891