CVE-2019-14827

Name: CVE-2019-14827
Creator: NVD / NIST
Published: 2021-05-17T16:15:07.51+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.67%

Last modified Jun 17, 2026

CVE-2019-14827 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A vulnerability was found in Moodle where javaScript injection was possible in some Mustache templates via recursive rendering from contexts. Mustache helper tags that were included in template contexts were not being escaped before that context was injected into another Mustache helper, which could result in script injection in some templates. EPSS estimates a 0.67% chance of exploitation in the next 30 days.

Description

A vulnerability was found in Moodle where javaScript injection was possible in some Mustache templates via recursive rendering from contexts. Mustache helper tags that were included in template contexts were not being escaped before that context was injected into another Mustache helper, which could result in script injection in some templates. This affects versions 3.7 to 3.7.1, 3.6 to 3.6.5, 3.5 to 3.5.7 and earlier unsupported versions.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.67%

47.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Moodle	Moodle	>= 3.5.0, <= 3.5.7
Moodle	Moodle	>= 3.6.0, <= 3.6.5
Moodle	Moodle	>= 3.7.0, <= 3.7.1

References

https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-62284Patch, Vendor Advisory
https://moodle.org/mod/forum/discuss.php?d=391030Patch, Vendor Advisory
https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-62284Patch, Vendor Advisory
https://moodle.org/mod/forum/discuss.php?d=391030Patch, Vendor Advisory

Timeline

Published: May 17, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-14827?

How severe is CVE-2019-14827?

CVE-2019-14827 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.67% probability of exploitation in the next 30 days.

How do I fix CVE-2019-14827?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-14827?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST