CVE-2020-25631

MEDIUM
6.1
CVSS Score
Published: December 8, 2020 at 12:10 AM UTC
Updated: June 17, 2026 at 03:07 AM UTC
1 product affected across 1 vendorMoodle

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.9%

Description

A vulnerability was found in Moodle 3.9 to 3.9.1, 3.8 to 3.8.4 and 3.7 to 3.7.7 where it was possible to include JavaScript in a book's chapter title, which was not escaped on the "Add new chapter" page. This is fixed in 3.9.2, 3.8.5 and 3.7.8.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

3.7.0 ≤ v < 3.7.83.8.0 ≤ v < 3.8.53.9 ≤ v ≤ 3.7.73.9.0 ≤ v < 3.9.2
Affected range stops below 3.7.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.8.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.9.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

x_refsource_CONFIRMPatchVendor Advisory
https://moodle.org/mod/forum/discuss.php?d=410843

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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