High severity · published Feb 3, 2026
CVE-2025-67851
A flaw was found in moodle
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
A flaw was found in moodle. This formula injection vulnerability occurs when data fields are exported without proper escaping. A remote attacker could exploit this by providing malicious data that, when exported and opened in a spreadsheet, allows arbitrary formulas to execute. This can lead to compromised data integrity and unintended operations within the spreadsheet.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MO
Moodle · Moodle
before 4.1.22; 4.4.0 before 4.4.11; 4.5.0 before 4.5.8; 5.0.0 before 5.0.4; 5.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-67851
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-67851
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2025-67851
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2423841
Vendor Advisory
https://moodle.org/mod/forum/discuss.php?d=471301
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