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| Vulnerability ID | VCID-9129-278a-pfdq |
| Aliases |
CVE-2015-5331
GHSA-m7cc-6vhg-39wr |
| Summary | Moodle improper access control Moodle 2.9.x before 2.9.3 does not properly check the contact list before authorizing message transmission, which allows remote authenticated users to bypass intended access restrictions and conduct spam attacks via the messaging API. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 6.2 |
| Risk | 3.1 |
| Affected and Fixed Packages | Package Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 4.3 | http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-50426 |
| generic_textual | MODERATE | http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-50426 |
| epss | 0.00163 | https://api.first.org/data/v1/epss?cve=CVE-2015-5331 |
| epss | 0.00163 | https://api.first.org/data/v1/epss?cve=CVE-2015-5331 |
| cvssv3.1_qr | MODERATE | https://github.com/advisories/GHSA-m7cc-6vhg-39wr |
| cvssv3.1 | 4.3 | https://github.com/moodle/moodle |
| generic_textual | MODERATE | https://github.com/moodle/moodle |
| cvssv3.1 | 4.3 | https://github.com/moodle/moodle/commit/cd0c9ac87d75b3d893d61df21e3ecfd12c065c1f |
| generic_textual | MODERATE | https://github.com/moodle/moodle/commit/cd0c9ac87d75b3d893d61df21e3ecfd12c065c1f |
| cvssv3.1 | 4.3 | https://moodle.org/mod/forum/discuss.php?d=323228 |
| generic_textual | MODERATE | https://moodle.org/mod/forum/discuss.php?d=323228 |
| cvssv3.1 | 4.3 | https://nvd.nist.gov/vuln/detail/CVE-2015-5331 |
| generic_textual | MODERATE | https://nvd.nist.gov/vuln/detail/CVE-2015-5331 |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Percentile | 0.38081 |
| EPSS Score | 0.00163 |
| Published At | June 30, 2025, 12:55 p.m. |
| Date | Actor | Action | Source | VulnerableCode Version |
|---|---|---|---|---|
| 2025-07-01T12:26:22.245259+00:00 | GithubOSV Importer | Import | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-m7cc-6vhg-39wr/GHSA-m7cc-6vhg-39wr.json | 36.1.3 |