How severe is CVE-2015-5338?

CVE-2015-5338 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2015-5338 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-5338?

CVE-2015-5338 primarily affects Moodle. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-5338?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2015-5338 published?

CVE-2015-5338 was published on 2016-02-22 and last updated on 2026-06-17.

CVE-2015-5338

CVE-2015-5338 is a high-severity vulnerability in Moodle with a CVSS 3.x base score of 8.8. 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-352.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Moodle
Published: 2016-02-22
Last modified: 2026-06-17

Description

Multiple cross-site request forgery (CSRF) vulnerabilities in the lesson module in Moodle through 2.6.11, 2.7.x before 2.7.11, 2.8.x before 2.8.9, and 2.9.x before 2.9.3 allow remote attackers to hijack the authentication of arbitrary users for requests to (1) mod/lesson/mediafile.php or (2) mod/lesson/view.php.

Frequently asked questions

What is CVE-2015-5338?: Multiple cross-site request forgery (CSRF) vulnerabilities in the lesson module in Moodle through 2.6.11, 2.7.x before 2.7.11, 2.8.x before 2.8.9, and 2.9.x before 2.9.3 allow remote attackers to hijack the authentication of arbitrary users for requests to (1) mod/lesson/mediafile.php or (2) mod/lesson/view.php.
How severe is CVE-2015-5338?: CVE-2015-5338 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2015-5338 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-5338?: CVE-2015-5338 primarily affects Moodle. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-5338?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2015-5338 published?: CVE-2015-5338 was published on 2016-02-22 and last updated on 2026-06-17.

References

Affected products (24)

cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.7.0:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.7.1:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.7.2:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.7.3:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.7.4:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.7.5:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.7.6:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.7.7:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.7.8:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.7.9:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.7.10:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.8.0:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.8.1:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.8.2:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.8.3:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.8.4:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.8.5:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.8.6:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.8.7:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.8.8:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.9.0:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.9.1:*:*:*:*:*:*:*
cpe:2.3:a:moodle:moodle:2.9.2:*:*:*:*:*:*:*

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