CVE-2015-3176

CVE-2015-3176 is a medium-severity vulnerability in Moodle with a CVSS 2.0 base score of 4.3. 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-200.

Key facts

• Severity: Medium (CVSS 2.0 base score 4.3)
• EPSS exploit prediction: 2% (77th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-200
• Affected product: Moodle
• Published: 2015-06-01
• Last modified: 2026-06-17

Description

The account-confirmation feature in login/confirm.php in Moodle through 2.5.9, 2.6.x before 2.6.11, 2.7.x before 2.7.8, and 2.8.x before 2.8.6 allows remote attackers to obtain sensitive full-name information by attempting to self-register.

Frequently asked questions

What is CVE-2015-3176?

The account-confirmation feature in login/confirm.php in Moodle through 2.5.9, 2.6.x before 2.6.11, 2.7.x before 2.7.8, and 2.8.x before 2.8.6 allows remote attackers to obtain sensitive full-name information by attempting to self-register.

How severe is CVE-2015-3176?

CVE-2015-3176 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2015-3176 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-3176?

CVE-2015-3176 primarily affects Moodle. In total, 35 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-3176?

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

When was CVE-2015-3176 published?

CVE-2015-3176 was published on 2015-06-01 and last updated on 2026-06-17.

References

• http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-50099
• http://openwall.com/lists/oss-security/2015/05/18/1
• http://www.securityfocus.com/bid/74644
• http://www.securitytracker.com/id/1032358
• https://moodle.org/mod/forum/discuss.php?d=313683

Affected products (35)

• cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.5.0:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.5.2:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.5.3:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.5.4:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.5.5:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.5.6:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.5.7:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.5.8:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.6.0:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.6.1:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.6.2:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.6.3:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.6.4:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.6.5:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.6.6:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.6.7:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.6.8:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.6.9:*:*:*:*:*:*:*
• cpe:2.3:a:moodle:moodle:2.6.10:*:*:*:*:*:*:*
• 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:2.8.0:*:*:*:*:*:*:*
• 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:*:*:*:*:*:*:*

More vulnerabilities in Moodle

• CVE-2006-4935 — Critical (CVSS 10.0): The Database module in Moodle before 1.6.2 does not properly handle uploaded files, which has unspecified impact and…
• CVE-2006-4936 — Critical (CVSS 10.0): Moodle before 1.6.2 does not properly validate the module instance id when creating a course module object, which has…
• CVE-2005-2247 — Critical (CVSS 10.0): Multiple unknown vulnerabilities in Moodle before 1.5.1 have unknown impact and attack vectors.
• CVE-2004-2233 — Critical (CVSS 10.0): Unknown "front page vulnerability with Moodle servers" for Moodle before 1.3.2 has unknown impact and attack vectors.
• CVE-2004-2236 — Critical (CVSS 10.0): Unknown vulnerability in Moodle before 1.3.3 has unknown impact and attack vectors, related to language setting.
• CVE-2004-2237 — Critical (CVSS 10.0): Unknown vulnerability in Moodle before 1.3.4 has unknown impact and attack vectors, related to "strings in Moodle…

All CVEs affecting Moodle →

Other CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities

• CVE-2026-27604 — Critical (CVSS 10.0): FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version…
• CVE-2026-40965 — Critical (CVSS 10.0): Cloud Foundry UAA versions v76.12.0 through v78.12.0 are vulnerable to a private key exposure. The server contains a…
• CVE-2026-42826 — Critical (CVSS 10.0): Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose…
• CVE-2025-29270 — Critical (CVSS 10.0): Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows…
• CVE-2025-61481 — Critical (CVSS 10.0): An issue in MikroTik RouterOS v.7.14.2 and SwOS v.2.18 exposes the WebFig management interface over cleartext HTTP by…
• CVE-2025-53624 — Critical (CVSS 10.0): The Docusaurus gists plugin adds a page to your Docusaurus instance, displaying all public gists of a GitHub user.…

Browse all CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities →