PHP Spellchecker addon for TinyMCE allows attackers to trigger arbitrary outbound HTTP requests
classes/GoogleSpell.php in the PHP Spellchecker (aka Google Spellchecker) addon before 2.0.6.1 for TinyMCE, as used in Moodle 2.1.x before 2.1.10, 2.2.x before 2.2.7, 2.3.x before 2.3.4, and 2.4.x before 2.4.1 and other products, does not properly handle control characters, which allows remote attackers to trigger arbitrary outbound HTTP requests via a crafted string.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | moodle/moodle | >= 2.1.0, < 2.1.10, >= 2.2.0, < 2.2.7, >= 2.3.0, < 2.3.4, >= 2.4.0, < 2.4.1 | 2.1.10, 2.2.7, 2.3.4, 2.4.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2012-6112
- https://github.com/moodle/moodle/commit/6fac8f7f04c9fe7f8bbb54a9c00ec5f9ea4f09e0
- https://github.com/moodle/moodle/commit/9803d8fc3ce08c8f8b88ad3a95d9a7c97678a3e3
- https://github.com/moodle/moodle/commit/a3243760c243ddad76e91840134009c3681cb16a
- https://github.com/moodle/moodle/commit/f938b1a89b8f381129120a37915d1b345333b3fb
- https://github.com/tinymce/tinymce_spellchecker_php/commit/22910187bfb9edae90c26e10100d8145b505b974
- https://github.com/moodle/moodle
- https://moodle.org/mod/forum/discuss.php?d=220157
- https://web.archive.org/web/20121015010345/http://www.tinymce.com/develop/changelog/?type=phpspell
- https://web.archive.org/web/20121129021911/http://www.tinymce.com/forum/viewtopic.php?id=30036
- http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-37283
- http://openwall.com/lists/oss-security/2013/01/21/1
- Weakness (CWE)
-- Platform
- Composer
- Package
moodle/moodle- Disclosed
- 13.05.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-fx5h-3786-h2w6 - CC BY 4.0
Vulnerability history: moodle/moodle
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 437
- First → latest
- 03.2021 02.2026
- Without a fix
- 10
- Exploited in attacks
- 0
Severity breakdown
- Critical 16
- High 68
- Medium 318
- Low 35
Disclosures per year
- 2021: 11
- 2022: 285
- 2023: 43
- 2024: 53
- 2025: 33
- 2026: 12
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PHP Spellchecker addon for TinyMCE allows attackers to trigger arbitrary outbound HTTP requests this entry
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