CVE-2023-28332: Moodle: algebra filter xss when filter is misconfigured
First published: Fri Mar 17 2023(Updated: )
If the algebra filter was enabled but not functional (eg the necessary binaries were missing from the server), it presented an XSS risk.
Credit: patrick@puiterwijk.org patrick@puiterwijk.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Moodle Moodle | >3.9.0<3.9.20 | |
| Moodle Moodle | >3.11.0<3.11.13 | |
| Moodle Moodle | >4.0.0<4.0.7 | |
| Moodle Moodle | =3.9.0 | |
| Moodle Moodle | =3.11.0 | |
| Moodle Moodle | =4.0.0 | |
| Moodle Moodle | =4.1.0 | |
| Moodle Moodle | =4.1.1 | |
| redhat/moodle | <4.1.2 | 4.1.2 |
| redhat/moodle | <4.0.7 | 4.0.7 |
| redhat/moodle | <3.11.13 | 3.11.13 |
| redhat/moodle | <3.9.20 | 3.9.20 |
| composer/moodle/moodle | <3.9.20 | 3.9.20 |
| composer/moodle/moodle | >=3.11.0<3.11.13 | 3.11.13 |
| composer/moodle/moodle | >=4.0.0<4.0.7 | 4.0.7 |
| composer/moodle/moodle | >=4.1.0<4.1.2 | 4.1.2 |
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Reference Links
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3QZN34VSF4HTCW3C3ZP2OZYSLYUKADPF/
- https://moodle.org/mod/forum/discuss.php?d=445064
- https://bugzilla.redhat.com/show_bug.cgi?id=2179419
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3QZN34VSF4HTCW3C3ZP2OZYSLYUKADPF/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2180083
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2180082
- https://nvd.nist.gov/vuln/detail/CVE-2023-28332
- https://github.com/moodle/moodle/commit/9f178c1f816e78ec024ab16a10192c81305b2624
- https://git.moodle.org/gw?p=moodle.git;a=commitdiff;h=9f178c1f816e78ec024ab16a10192c81305b2624
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3QZN34VSF4HTCW3C3ZP2OZYSLYUKADPF
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3QZN34VSF4HTCW3C3ZP2OZYSLYUKADPF
- https://github.com/advisories/GHSA-9f45-9qrw-pp4v (Advisory)
Frequently Asked Questions
What is CVE-2023-28332?
CVE-2023-28332 is a vulnerability in Moodle that allowed for XSS attacks when the algebra filter was enabled but not functional.
How does CVE-2023-28332 impact Moodle?
CVE-2023-28332 presented an XSS risk in Moodle if the algebra filter was enabled but not functional.
What is the severity of CVE-2023-28332?
CVE-2023-28332 has a severity value of 6.1, which is classified as medium.
Which versions of Moodle are affected by CVE-2023-28332?
Moodle versions 3.9.0 to 3.9.20, 3.11.0 to 3.11.13, 4.0.0 to 4.0.7, 4.1.0, and 4.1.1 are affected by CVE-2023-28332.
How can I mitigate the risk of CVE-2023-28332?
To mitigate the risk of CVE-2023-28332, ensure that the necessary binaries for the algebra filter are present on the server.
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