An issue in the logic used to check 0.0.0.0 against the cURL blocked hosts lists resulted in an SSRF risk.
| Severity/Risk: | Serious |
| Versions affected: | 4.2, 4.1 to 4.1.3, 4.0 to 4.0.8, 3.11 to 3.11.14, 3.9 to 3.9.21 and earlier unsupported versions |
| Versions fixed: | 4.2.1, 4.1.4, 4.0.9, 3.11.15 and 3.9.22 |
| Reported by: | Mateo Hanžek |
| CVE identifier: | CVE-2023-35133 |
| Changes (master): | http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-78215 |
| Tracker issue: | MDL-78215 SSRF risk due to insufficient check on the cURL blocked hosts list |