vpopmail 5.4.14 and 5.4.15, with cleartext passwords enabled, allows remote attackers to authenticate to an account that does not have a cleartext password set by using a blank password to (1) SMTP AUTH or (2) APOP.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Vpopmail_(vchkpw) | Inter7 | 5.4.14 (including) | 5.4.14 (including) |
| Vpopmail_(vchkpw) | Inter7 | 5.4.15 (including) | 5.4.15 (including) |