moodle before versions 3.5.2, 3.4.5, 3.3.8, 3.1.14 is vulnerable to an XML import of ddwtos could lead to intentional remote code execution. When importing legacy 'drag and drop into text' (ddwtos) type quiz questions, it was possible to inject and execute PHP code from within the imported questions, either intentionally or by importing questions from an untrusted source.
CVE-2018-14630
This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 4.4%, top 10% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 8.8(medium)
- EG Risk
- 46(Track)EG Risk 46/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity88% × 45%Exploitation4% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 90.3%
- KEV
- Not listed
Published
September 17, 2018
Last Modified
November 21, 2024
References (12)
- secalert@redhathttp://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-62880
- secalert@redhathttp://www.securityfocus.com/bid/105354
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14630
- secalert@redhathttps://moodle.org/mod/forum/discuss.php?d=376023
- secalert@redhathttps://seclists.org/fulldisclosure/2018/Sep/28
- secalert@redhathttps://www.sec-consult.com/en/blog/advisories/remote-code-execution-php-unserialize-moodle-open-source-learning-platform-cve-2018-14630/
- af854a3a-2127-422b-91ae-364da2661108http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-62880
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/105354
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14630
- af854a3a-2127-422b-91ae-364da2661108https://moodle.org/mod/forum/discuss.php?d=376023
- af854a3a-2127-422b-91ae-364da2661108https://seclists.org/fulldisclosure/2018/Sep/28
- af854a3a-2127-422b-91ae-364da2661108https://www.sec-consult.com/en/blog/advisories/remote-code-execution-php-unserialize-moodle-open-source-learning-platform-cve-2018-14630/
Affected Packages
(1 across 1 ecosystem)
Packagist(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| moodle/moodle | v2.3.10 ... v3.1.9 (133 versions) | 3.1.14 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 13× in last 7d / 43× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-24 14:14 UTCEPSS rescore
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- 2026-05-28 03:05 UTCEG score recompute
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- 2026-05-23 10:01 UTCOSV refresh
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2018-14630?
When was CVE-2018-14630 disclosed?
Is CVE-2018-14630 actively exploited?
What is the CVSS score of CVE-2018-14630?
How do I remediate CVE-2018-14630?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2018-14630
Is Your Infrastructure Affected by CVE-2018-14630?
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