CVE-2025-55127

MEDIUM
2025-11-20 [email protected]
5.4
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 28, 2026 - 19:23 vuln.today
PoC Detected
Jan 14, 2026 - 21:18 vuln.today
Public exploit code
CVE Published
Nov 20, 2025 - 19:16 nvd
MEDIUM 5.4

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.

Analysis

HackerOne community member Dao Hoang Anh (yoyomiski) has reported an improper neutralization of whitespace in the username when adding new users. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical Context

This vulnerability is classified under CWE-156. 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. Affected products include: Aquaplatform Revive Adserver.

Affected Products

Aquaplatform Revive Adserver.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Priority Score

47
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +27
POC: +20

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CVE-2025-55127 vulnerability details – vuln.today

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