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CVE-2023-28332
Moodle: algebra filter xss when filter is misconfigured
Medium6.1EPSS 0.63%
- Published
- Updated
- Reserved
- Assigned by
- fedora
Description
If the algebra filter was enabled but not functional (eg the necessary binaries were missing from the server), it presented an XSS risk.
Timeline
ID reserved
By fedora
- 9 days later
· 9 days later
Published
- 17 months later
· 17 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.63% · top 49% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.
Weakness
Affected products
moodle
- affected 4.1.0 – < 4.1.2
- affected 4.0.0 – < 4.0.7
- affected 3.11.0 – < 3.11.13
- affected < 3.9.20
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Packagistmoodle/moodleGHSA-9f45-9qrw-pp4v (opens in a new tab)
References (3)
- RHBZ#2179419 (opens in a new tab)issue-trackingx_refsource_REDHATx_transferred
- FEDORA-2023-d9c13996b2 (opens in a new tab)vendor-advisoryx_transferred
- https://moodle.org/mod/forum/discuss.php?d=445064 (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-9f45-9qrw-pp4v (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-28332)Record last updated .