Form on the feedback "non-respondents" page does not escape the value of subject thus creating self-XSS. This can be used to attack another user by tricking them into opening malicious URL whilst in an open Moodle session
| Severity/Risk: | Minor |
| Versions affected: | 3.3 to 3.3.1, 3.2 to 3.2.4, 3.1 to 3.1.7 and earlier unsupported versions |
| Versions fixed: | 3.3.2, 3.2.5 and 3.1.8 |
| Reported by: | JPCERT/CC |
| CVE identifier: | CVE-2017-12156 |
| Changes (master): | http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-59972 |
| Tracker issue: | MDL-59972 XSS in contact form on "non-respondents" page (mod_feedback) |