How severe is CVE-2017-2578?

CVE-2017-2578 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-2017-2578 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-2578?

CVE-2017-2578 primarily affects Moodle. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-2578?

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

When was CVE-2017-2578 published?

CVE-2017-2578 was published on 2017-01-20 and last updated on 2026-06-17.

CVE-2017-2578

CVE-2017-2578 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)
CVSS v2: 4.3
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Moodle
Published: 2017-01-20
Last modified: 2026-06-17

Description

In Moodle 3.x, there is XSS in the assignment submission page.

Frequently asked questions

What is CVE-2017-2578?: In Moodle 3.x, there is XSS in the assignment submission page.
How severe is CVE-2017-2578?: CVE-2017-2578 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-2017-2578 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-2578?: CVE-2017-2578 primarily affects Moodle. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-2578?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-2578 published?: CVE-2017-2578 was published on 2017-01-20 and last updated on 2026-06-17.

References

Affected products (14)

cpe:2.3:a:moodle:moodle:3.1.0:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:3.1.0:beta:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:3.1.0:rc1:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:3.1.0:rc2:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:3.1.1:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:3.1.2:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:3.1.3:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:3.2.0:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:3.2.0:beta:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:3.2.0:rc1:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:3.2.0:rc2:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:3.2.0:rc3:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:3.2.0:rc4:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:3.2.0:rc5:*:*:*:*:*:*

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