CVE-2018-25350
Critical · 9.8CVSS
9.8
EPSS
0.4%
Published
May 23, 2026
CISA due date
—
The record
userSpice 4.3.24 contains a username enumeration vulnerability that allows unauthenticated attackers to discover valid usernames by sending POST requests to the existingUsernameCheck.php endpoint. Attackers can submit usernames and analyze response text for the 'taken' string to identify existing accounts in the system.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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