CVE-2025-55127

Nov. 21, 2025, 3:13 p.m.

5.4
Medium

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.

Product(s) Impacted

Vendor Product Versions
Hackerone
  • Hackerone
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-156
Improper Neutralization of Whitespace
The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as whitespace when they are sent to a downstream component.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a hackerone hackerone / / / / / / / /

References

https://hackerone.com/reports/3413764

Tags

support@hackerone.com
CWE-156
2025-11-20
CVE-2025-55127

CVSS Score

5.4 / 10

CVSS Data - 3.1

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Privileges Required: LOW
  • Scope: UNCHANGED
  • Confidentiality Impact: LOW
  • Integrity Impact: LOW
  • Availability Impact: NONE

    • CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

    View Vector String

Timeline

Published: Nov. 20, 2025, 7:16 p.m.
Last Modified: Nov. 21, 2025, 3:13 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

support@hackerone.com

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.