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NVD / CVE Program· CNA fedora

CVE-2025-3638: Moodle: csrf risk in brickfield tool's analysis request action

Noroxi assessment

Priority: Monitor (action score 35/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.29% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: git.moodle.org moodle 4.1.18, 4.3.12, 4.4.8.

Low priority for now. Upgrade to git.moodle.org moodle 4.1.18, 4.3.12, 4.4.8 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A flaw was found in Moodle. The analysis request action in the Brickfield tool did not include the necessary token to prevent a Cross-site request forgery (CSRF) risk.

HighCVSS 8.8 · v3.1—No exploit Fix available
Published
Apr 25, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 22th percentile

Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-3638

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
moodlemoodle

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • moodle moodlebefore 4.1.18
  • moodle moodle4.3.0 and later · before 4.3.12
  • moodle moodle4.4.0 and later · before 4.4.8
  • moodle moodle4.5.0 and later · before 4.5.4

Versions reported by the vendor

Affected version ranges reported by the assigning authority (fedora). Independent of NVD's CPE analysis and usually ahead of it.

  • git.moodle.org moodle

    • 4.5.0 and later · before 4.5.4affected · semver
    • 4.4.0 and later · before 4.4.8affected · semver
    • 4.3.0 and later · before 4.3.12affected · semver
    • 4.1.0 and later · before 4.1.18affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Packagistmoodle/moodlefrom 4.3.0-beta · before 4.3.124.3.12
Packagistmoodle/moodlefrom 4.4.0-beta · before 4.4.84.4.8
Packagistmoodle/moodlefrom 4.5.0-beta · before 4.5.44.5.4
Packagistmoodle/moodlebefore 4.1.184.1.18

Same product

moodle: all records

Other highest-scoring records for the same primary product.

  • CVE-2024-43425Moodle: remote code execution via calculated question types
    60This week
  • CVE-2021-36393In Moodle, an SQL injection risk was identified in the library fetching a user's recent courses.
    55Plan
  • CVE-2022-0332A flaw was found in Moodle in versions 3.11 to 3.11.4.
    52Plan

Published before and after this one in the same product

  • ← EarlierCVE-2025-3636Apr 25, 2025 · Moodle: idor in moodle rss block allows unauthorized access to rss feeds
    17Monitor
  • ← EarlierCVE-2025-3637Apr 25, 2025 · Moodle: csrf token exposure via url in moodle mod_data module
    12Monitor
  • Later →CVE-2025-3640Apr 25, 2025 · Moodle: idor in web service allows users enrolled in a course to access some details of other users
    17Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
git.moodle.org moodle4.1.18Vendor (CNA)
git.moodle.org moodle4.3.12Vendor (CNA)
git.moodle.org moodle4.4.8Vendor (CNA)
git.moodle.org moodle4.5.4Vendor (CNA)
Packagist:moodle/moodle4.1.18Package registry (OSV)
Packagist:moodle/moodle4.3.12Package registry (OSV)
Packagist:moodle/moodle4.4.8Package registry (OSV)
Packagist:moodle/moodle4.5.4Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-34007329 days apartmoodle: logout CSRF in admin/tool/mfa/auth.php
    35Monitor
  • CVE-2024-34008329 days apartmoodle: CSRF risk in analytics management of models
    35Monitor
  • CVE-2024-25982431 days apartMsa-24-0005: csrf risk in language import utility
    35Monitor
  • CVE-2024-34001329 days apartmoodle: CSRF risk in admin preset tool management of presets
    33Monitor
  • CVE-2025-36350 days apartMoodle: csrf risk in moodle user tours manager allows tour duplication
    14Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-352 · Cross-Site Request Forgery (CSRF)

CVSS vector

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

nvd-secondary

Root cause

State-changing requests rely on the session cookie the browser sends automatically; nothing verifies that the request came from the user’s own page.

The bug in code

The whole CWE-352 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
app.use(session({ cookie: { httpOnly: true } }));app.post("/account/address", updateAddress);

Fixed

ts
app.use(session({ cookie: { httpOnly: true, sameSite: "lax" } }));app.post("/account/address", csrfProtection, updateAddress);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records