How severe is CVE-2023-28332?

CVE-2023-28332 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-28332 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-28332?

CVE-2023-28332 primarily affects Moodle. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-28332?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-28332 published?

CVE-2023-28332 was published on 2023-03-23 and last updated on 2026-06-17.

CVE-2023-28332

CVE-2023-28332 is a medium-severity vulnerability in Moodle with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Moodle
Published: 2023-03-23
Last modified: 2026-06-17

Description

If the algebra filter was enabled but not functional (eg the necessary binaries were missing from the server), it presented an XSS risk.

Frequently asked questions

What is 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.
How severe is CVE-2023-28332?: CVE-2023-28332 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-28332 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-28332?: CVE-2023-28332 primarily affects Moodle. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-28332?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-28332 published?: CVE-2023-28332 was published on 2023-03-23 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:3.9.0:-:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:3.11.0:-:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:4.0.0:-:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:4.1.0:-:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:4.1.1:*:*:*:*:*:*:*

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