The KSES text cleaning filter in lib/weblib.php in Moodle before 1.8.13 and 1.9.x before 1.9.9 does not properly handle vbscript URIs, which allows remote authenticated users to conduct cross-site scripting (XSS) attacks via HTML input.
2010-06-28T17:30:01.247
2025-04-11T00:51:21.963
Deferred
CVSSv2: 4.0 (MEDIUM)
AV:N/AC:L/Au:S/C:N/I:P/A:N
8.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | moodle | moodle | ≤ 1.8.12 | Yes |
| Application | moodle | moodle | 1.1.1 | Yes |
| Application | moodle | moodle | 1.2.0 | Yes |
| Application | moodle | moodle | 1.2.1 | Yes |
| Application | moodle | moodle | 1.3.0 | Yes |
| Application | moodle | moodle | 1.3.1 | Yes |
| Application | moodle | moodle | 1.3.2 | Yes |
| Application | moodle | moodle | 1.3.3 | Yes |
| Application | moodle | moodle | 1.3.4 | Yes |
| Application | moodle | moodle | 1.4.1 | Yes |
| Application | moodle | moodle | 1.4.2 | Yes |
| Application | moodle | moodle | 1.4.3 | Yes |
| Application | moodle | moodle | 1.4.4 | Yes |
| Application | moodle | moodle | 1.4.5 | Yes |
| Application | moodle | moodle | 1.5 | Yes |
| Application | moodle | moodle | 1.5.0 | Yes |
| Application | moodle | moodle | 1.5.1 | Yes |
| Application | moodle | moodle | 1.5.2 | Yes |
| Application | moodle | moodle | 1.5.3 | Yes |
| Application | moodle | moodle | 1.6.0 | Yes |
| Application | moodle | moodle | 1.6.1 | Yes |
| Application | moodle | moodle | 1.6.2 | Yes |
| Application | moodle | moodle | 1.6.3 | Yes |
| Application | moodle | moodle | 1.6.4 | Yes |
| Application | moodle | moodle | 1.6.5 | Yes |
| Application | moodle | moodle | 1.6.6 | Yes |
| Application | moodle | moodle | 1.6.7 | Yes |
| Application | moodle | moodle | 1.6.8 | Yes |
| Application | moodle | moodle | 1.7.1 | Yes |
| Application | moodle | moodle | 1.7.2 | Yes |
| Application | moodle | moodle | 1.7.3 | Yes |
| Application | moodle | moodle | 1.7.4 | Yes |
| Application | moodle | moodle | 1.7.5 | Yes |
| Application | moodle | moodle | 1.7.6 | Yes |
| Application | moodle | moodle | 1.8.1 | Yes |
| Application | moodle | moodle | 1.8.2 | Yes |
| Application | moodle | moodle | 1.8.3 | Yes |
| Application | moodle | moodle | 1.8.4 | Yes |
| Application | moodle | moodle | 1.8.5 | Yes |
| Application | moodle | moodle | 1.8.6 | Yes |
| Application | moodle | moodle | 1.8.7 | Yes |
| Application | moodle | moodle | 1.8.8 | Yes |
| Application | moodle | moodle | 1.8.9 | Yes |
| Application | moodle | moodle | 1.8.10 | Yes |
| Application | moodle | moodle | 1.8.11 | Yes |
| Application | moodle | moodle | 1.9.1 | Yes |
| Application | moodle | moodle | 1.9.2 | Yes |
| Application | moodle | moodle | 1.9.3 | Yes |
| Application | moodle | moodle | 1.9.4 | Yes |
| Application | moodle | moodle | 1.9.5 | Yes |
| Application | moodle | moodle | 1.9.6 | Yes |
| Application | moodle | moodle | 1.9.7 | Yes |
| Application | moodle | moodle | 1.9.8 | Yes |