CVE-2025-55127 Details
Description
HackerOne community member Dao Hoang Anh (yoyomiski) has reported an improper neutralization of whitespace in the username when adding new users. A username with leading or trailing whitespace could be virtually indistinguishable from its legitimate counterpart when the username is displayed in the UI, potentially leading to confusion.
A vulnerability in Revive Adserver versions through 6.0.2 allows the creation of usernames with leading or trailing whitespace. This whitespace normalization issue can make such usernames visually indistinguishable from legitimate ones in the user interface, leading to potential impersonation of administrative accounts. While the vulnerability does not directly grant elevated privileges, it could facilitate social engineering attacks and create confusion in audit logs.
Users can apply the patch available in the Revive Adserver security advisory SA-2025-004, which is set to be released soon. This patch disallows whitespace in usernames while still allowing full Unicode support.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Nov 20, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://hackerone.com/reports/3413764 | [email protected] | ExploitIssue Tracking |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-156 | Improper Neutralization of Whitespace | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| aquaplatform revive adserver | >= 6.0.0, < 6.0.3 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jan 14, 2026 | Initial Analysis | [email protected] |
| Nov 20, 2025 | CVE Modified | CISA-ADP |
| Nov 20, 2025 | New CVE Received | [email protected] |