# CVE-2026-119554: Moodle through 5.3.0, 5.2.4, 5.1.8, 5.0.11 and 4.5.15 SQL Injection via enrol_database Course idnumber

Status: published. Published: 2026-10-30. Updated: 2026-11-04.

Moodle 5.3.0, 5.2.0 through 5.2.4, 5.1.0 through 5.1.8, 5.0.0 through 5.0.11, and through 4.5.15 contain an sql injection vulnerability in the External database enrolment plugin via course idnumber. Editing teachers can store a backslash-quote payload in idnumber that executes during scheduled sync on MySQL/MariaDB external databases, reading data and manipulating enrolment results.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Moodle Project / moodle (moodle): 5.3.0 (affected, semver); ≥ 5.2.0; ≤ 5.2.4 (affected, semver); ≥ 5.1.0; ≤ 5.1.8 (affected, semver); ≥ 5.0.0; ≤ 5.0.11 (affected, semver); ≥ 0; ≤ 4.5.15 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 6 (medium); CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 5.9 (medium); CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N; source: CNA: VulnCheck

- CVSS 4.0: 6 (medium); CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X; source: NVD: disclosure@vulncheck.com

- CVSS 3.1: 5.9 (medium); CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: 0.21% as of 2026-11-04; percentile 12.04%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-89

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/moodle/moodle/blob/v5.3.0/public/enrol/database/lib.php#L918-L926 (CNA: VulnCheck; technical-description)

- https://github.com/moodle/moodle/blob/v5.3.0/public/enrol/database/lib.php#L971-L979 (CNA: VulnCheck; technical-description)

- https://github.com/moodle/moodle/blob/v5.3.0/public/enrol/database/lib.php#L527-L528 (CNA: VulnCheck; technical-description)

- https://abraxaslabs.tech/research/moodle-enrol-database-sqli (CNA: VulnCheck; third-party-advisory)

- https://github.com/moodle/moodle (CNA: VulnCheck; product)

- https://www.vulncheck.com/advisories/moodle-through-5.3.0-5.2.4-5.1.8-5.0.11-and-4.5.15-sql-injection-via-enrol-database-course-idnumber (CNA: VulnCheck; third-party-advisory)

- https://abraxaslabs.tech/research/moodle-enrol-database-sqli (disclosure@vulncheck.com)

- https://github.com/moodle/moodle (disclosure@vulncheck.com)

- https://github.com/moodle/moodle/blob/v5.3.0/public/enrol/database/lib.php#L527-L528 (disclosure@vulncheck.com)

- https://github.com/moodle/moodle/blob/v5.3.0/public/enrol/database/lib.php#L918-L926 (disclosure@vulncheck.com)

- https://github.com/moodle/moodle/blob/v5.3.0/public/enrol/database/lib.php#L971-L979 (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/moodle-through-5.3.0-5.2.4-5.1.8-5.0.11-and-4.5.15-sql-injection-via-enrol-database-course-idnumber (disclosure@vulncheck.com)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-119554; retrieved 2026-11-04; source updated 2026-11-04

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-119554; retrieved 2026-11-05; source updated 2026-11-04

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-119554; retrieved 2026-11-04; source updated Not reported

Revision: cb71d1a5309e44b902e2d31aaded471cae01d6ce63500d483c9f368cf8a4d77f

Canonical: https://y2.dev/cve/CVE-2026-119554

## Agent and API access

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- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.