SecuriTricks - CVE-2025-55129

Description

HackerOne community member Kassem S.(kassem_s94) has reported that username handling in Revive Adserver was still vulnerable to impersonation attacks after the fix for CVE-2025-52672, via several alternate techniques. Homoglyphs based impersonation has been independently reported by other HackerOne users, such as itz_hari_ and khoof.

Product(s) Impacted

Vendor	Product	Versions
Revive Adserver	Revive Adserver	*

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-176

Improper Handling of Unicode Encoding

The product does not properly handle when an input contains Unicode encoding.

*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	revive_adserver	revive_adserver	/	/	/	/	/	/	/	/

References

https://hackerone.com/reports/3434156

CVSS Score

5.4 / 10

CVSS Data - 3.0

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

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

View Vector String

Timeline

Published: Dec. 2, 2025, 2:15 a.m.
Last Modified: Dec. 2, 2025, 7:15 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

CVE-2025-55129