CVE-2013-3630Moodle Code Injection
Moodle Authenticated Spelling Binary Remote Code Execution
Published Oct 13, 2021 · Updated Oct 24, 2025 · Also known as GHSA-wxqg-fg7v-mmc6, TR-21-0830, UBUNTU-CVE-2013-3630
Key Facts
Routine patching- CVE-2013-3630 is a medium-severity vulnerability (CVSS 4.6 v2) affecting Moodle, moodle/moodle (composer).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 42% probability of exploitation in the next 30 days.
- Fixed versions are available, including Moodle 2.5.2, moodle/moodle 2.5.3.
- Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Scores
CVSS v2
4.6
AV:N/AC:H/Au:S/C:P/I:P/A:P
EPSS (30-day exploit likelihood)
42%
Higher than 98.6% of all scored CVEs
Exploit maturity
Weaponized
ATLAS score
57/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Weaponized
Public exploit code
3
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2013-3630
- advisoryhttps://ubuntu.com/security/CVE-2013-3630
- advisoryhttps://www.cve.org/CVERecord?id=CVE-2013-3630
- advisoryhttp://packetstormsecurity.com/files/164479/Moodle-Authenticated-Spelling-Binary-Remote-Code-Execution.html
- advisoryhttps://community.rapid7.com/community/metasploit/blog/2013/10/30/seven-foss-disclosures-part-one
- advisoryhttps://community.rapid7.com/community/metasploit/blog/2013/10/30/seven-tricks-and-treats
Description
Moodle through 2.5.2 allows remote authenticated administrators to execute arbitrary programs by configuring the aspell pathname and then triggering a spell-check operation within the TinyMCE editor.
Affected Products
119 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| MoodleMoodle | 1.1.1, 1.2.0, 1.2.1, 1.3.0, 1.3.1, 1.3.2, 1.3.3, 1.3.4 | 2.5.2 |
| moodle/moodlecomposer | See advisory | 2.5.3 |
Patched Releases
Moodle
2.5.2
moodle/moodle
2.5.3
Timeline
Publicly disclosed
Oct 13, 2021
Last updated
Oct 24, 2025
Weakness Type
- CWE-94 Improper Control of Generation of Code ('Code Injection')
References
- advisorynvd.nist.gov · CVE-2013-3630
- advisoryubuntu.com · CVE-2013-3630
- advisorycve.org · CVERecord
- advisorypacketstormsecurity.com · Moodle-Authenticated-Spelling-Binary-Remote-Cod…
- advisorycommunity.rapid7.com · seven-foss-disclosures-part-one
FAQ
Common Questions.
Moodle through 2.5.2 allows remote authenticated administrators to execute arbitrary programs by configuring the aspell pathname and then triggering a spell-check operation within the TinyMCE editor.
Affected: Moodle versions 1.1.1, 1.2.0, 1.2.1, 1.3.0, 1.3.1, 1.3.2, 1.3.3, 1.3.4; moodle/moodle (composer). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Moodle 2.5.2, moodle/moodle 2.5.3.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Is CVE-2013-3630 On Your Attack Surface?
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