CVE-2023-28332
Moodle: algebra filter xss when filter is misconfigured
If the algebra filter was enabled but not functional (eg the necessary binaries were missing from the server), it presented an XSS risk.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
If the algebra filter was enabled but not functional (eg the necessary binaries were missing from the server), it presented an XSS risk.
- Record
CVE-2023-28332- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
Moodle: algebra filter xss when filter is misconfigured
If the algebra filter was enabled but not functional (eg the necessary binaries were missing from the server), it presented an XSS risk.
- Record
CVE-2023-28332- Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2023-0965 No score
If the algebra filter was enabled but not functional (eg the necessary binaries were missing from the server), it presented an XSS risk.
- Record
EUVD-2023-0965- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9f45-9qrw-pp4v
Moodle vulnerable to Cross-site Scripting when algebra filter enabled but not functional
If the algebra filter was enabled but not functional (eg the necessary binaries were missing from the server), it presented an XSS risk.
- Record
GHSA-9f45-9qrw-pp4v- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVGHSA-9f45-9qrw-pp4v
Moodle vulnerable to Cross-site Scripting when algebra filter enabled but not functional
If the algebra filter was enabled but not functional (eg the necessary binaries were missing from the server), it presented an XSS risk.
- Record
GHSA-9f45-9qrw-pp4v- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2023-28332
If the algebra filter was enabled but not functional (eg the necessary binaries were missing from the server), it presented an XSS risk.
- Record
UBUNTU-CVE-2023-28332- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVBIT-moodle-2023-28332 No score
Moodle: algebra filter xss when filter is misconfigured
If the algebra filter was enabled but not functional (eg the necessary binaries were missing from the server), it presented an XSS risk.
- Record
BIT-moodle-2023-28332- Updated
- 2026-11-02
OSV No score
Moodle: algebra filter xss when filter is misconfigured
If the algebra filter was enabled but not functional (eg the necessary binaries were missing from the server), it presented an XSS risk.
- Record
CVE-2023-28332- Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
moodle/moodlePackagist |
4.1.0 up to 4.1.2 | 4.1.2 |
moodle/moodlePackagist |
4.0.0 up to 4.0.7 | 4.0.7 |
moodle/moodlePackagist |
3.11.0 up to 3.11.13 | 3.11.13 |
moodle/moodlePackagist |
before 3.9.20 | 3.9.20 |
moodleBitnami |
3.9.0 up to 3.9.20, 3.11.0 up to 3.11.13, 4.0.0 up to 4.0.7, 4.1.0 up to 4.1.2 | 3.9.203.11.134.0.74.1.2 |
moodle/moodlePackagist |
4.1.0 up to 4.1.2, plus listed versions v4.1.0v4.1.1 |
4.1.2 |
moodle/moodlePackagist |
4.0.0 up to 4.0.7, plus listed versions v4.0.0v4.0.1v4.0.2v4.0.3v4.0.4v4.0.5v4.0.6 |
4.0.7 |
moodle/moodlePackagist |
3.11.0 up to 3.11.13, plus listed versions v3.11.0v3.11.1v3.11.10v3.11.11v3.11.12 Show 8 moreShow lessv3.11.2v3.11.3v3.11.4v3.11.5v3.11.6v3.11.7v3.11.8v3.11.9 |
3.11.13 |
moodle/moodlePackagist |
before 3.9.20, plus listed versions v2.3.10v2.3.11v2.3.4v2.3.5v2.3.6 Show 45 moreShow lessv2.3.7v2.3.8v2.3.9v2.4.0v2.4.0-rc1v2.4.1v2.4.10v2.4.11v2.4.2v2.4.3v2.4.4v2.4.5v2.4.6v2.4.7v2.4.8v2.4.9v2.5.0v2.5.0-betav2.5.0-rc1v2.5.1v2.5.2v2.5.3v2.5.4v2.5.5v2.5.6v2.5.7v2.5.8v2.5.9v2.6.0v2.6.0-betav2.6.0-rc1v2.6.1v2.6.10v2.6.11v2.6.2v2.6.3v2.6.4v2.6.5v2.6.6v2.6.7v2.6.8v2.6.9v2.7.0v2.7.0-betav2.7.0-rc1 |
3.9.20 |
moodleUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 2.7.9+dfsg-12.7.10+dfsg-12.7.11+dfsg-12.7.11+dfsg-22.7.12+dfsg-13.0.3+dfsg-0ubuntu13.0.3+dfsg-0ubuntu1+esm1 |
None known |
moodleUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 3.0.3+dfsg-0ubuntu13.0.3+dfsg-0ubuntu1+esm1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-28332 is a medium vulnerability (CVSS 6.1) in Moodle, published March 23, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.63%, the 50th percentile. Fixed in moodle/moodle 4.1.2.
References
bugzilla.redhat.com/show_bug.cgi?id=2179419
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3QZN34VSF4HTCW3C3ZP2OZYSLYUKADPF
moodle.org/mod/forum/discuss.php?d=445064
nvd.nist.gov/vuln/detail/CVE-2023-28332
github.com/moodle/moodle/commit/9f178c1f816e78ec024ab16a10192c81305b2624
git.moodle.org/gw?p=moodle.git;a=commitdiff;h=9f178c1f816e78ec024ab16a10192c81305b2624
Show 7 moreShow less
ubuntu.com/security/CVE-2023-28332
cve.org/CVERecord?id=CVE-2023-28332
Left out here: 217 versions. The JSON record has them.