CVE-2025-67851 | Moodle: moodle: formula injection allows arbitrary formula execution via unescaped data export

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.

Published: 2026-02-03 Last update: 2026-02-11 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-67851 is rated Low Risk (30.2/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.25%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-67851

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.06% 0.25% +0.19%
2 2026-06-05 0.05% 0.06% +0.01%
3 2026-05-13 — 0.05% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-67851

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.1 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 1.3 4.7 [email protected]
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]

Weakness enumeration for CVE-2025-67851

GitHub Security Advisory for CVE-2025-67851

GHSA-qfh6-h7j6-fvjv · Severity: medium · Ecosystem: composer — Moodle formula injection vulnerability

OS Trackers for CVE-2025-67851

vendor priority summary link
ubuntu medium CVE-2025-67851 medium priority: Ubuntu including 1 source packages (moodle), 6 status rows across 6 suites (bionic, jammy, noble, questing, upstream, xenial): DNE 3, needs-triage 3. https://ubuntu.com/security/CVE-2025-67851

Affected software / configurations for CVE-2025-67851

Vendor Product Version Raw CPE
moodle moodle < 4.1.22 cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
moodle moodle >= 4.4.0, < 4.4.11 cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
moodle moodle >= 4.5.0, < 4.5.8 cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
moodle moodle >= 5.0.0, < 5.0.4 cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
moodle moodle 5.1.0 cpe:2.3:a:moodle:moodle:5.1.0:-:*:*:*:*:*:*

References for CVE-2025-67851

cvelogic Threat Intelligence