Moodle Authenticated Spelling Binary Remote Code Execution

published 2013-11-01 13y ago modified 2026-06-16 4mo ago also GHSA-wxqg-fg7v-mmc6 , EUVD-2022-5672

cvss: 4.6; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 41.7%; EPSS 41.7% chance of exploitation in 30 days, percentile 98%
public exploits: 2; Metasploit and Exploit-DB

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.

Patch / fix

fixed in 1

packagist moodle/moodle 2.5.3

Is CVE-2013-3630 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2013-3630 updated 2025-11-21 cvss 6.8

moodle: authenticated remote command execution

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

2013-10-30 First public exploit (Metasploit exploit/multi/http/moodle_spelling_binary_rce)
2013-11-01 Published

Exploit prediction

41.67% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

Metasploit exploit/multi/http/moodle_spelling_binary_rce Moodle Authenticated Spelling Binary RCE metasploit exploit, excellent rank, 2013-10-30
EDB-29324 Moodle - Remote Command Execution (Metasploit) remote, 2013-10-31
community.rapid7.com https://community.rapid7.com/community/metasploit/blog/2013/10/30/seven-tricks-and-treats referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	2.0	4.6	AV:N/AC:H/Au:S/C:P/I:P/A:P

Affected packages

ecosystem	package	affected	fixed in
packagist	moodle/moodle	<2.5.3	2.5.3

Classification

Weakness

CWE-94 Improper Control of Generation of Code

References

Sources

CVE List CVE-2013-3630
GitHub Advisory GHSA-wxqg-fg7v-mmc6
NVD CVE-2013-3630

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

json all entries feed