Revive Adserver up to 6.0.3 unicode encoding

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Revive Adserver up to 6.0.3. This impacts an unknown function. Such manipulation leads to Remote Privilege Escalation. This vulnerability is referenced as CVE-2025-55129. It is possible to launch the attack remotely. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Revive Adserver up to 6.0.3. It has been rated as critical. Affected by this issue is an unknown part. The manipulation with an unknown input leads to a remote privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-176. The product does not properly handle when an input contains Unicode encoding. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at hackerone.com. This vulnerability is handled as CVE-2025-55129 since 08/07/2025. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available.

Upgrading to version 6.0.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CNNVD (CNNVD-202512-326). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.4
CNA Vector (hackerone): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper handling of unicode encoding
CWE: CWE-176 / CWE-172
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Adserver 6.0.4

Timelineinfo

08/07/2025 CVE reserved
12/02/2025 +117 days Advisory disclosed
12/02/2025 +0 days VulDB entry created
12/03/2025 +1 days VulDB entry last update

Sourcesinfo

Advisory: hackerone.com
Status: Confirmed

CVE: CVE-2025-55129 (🔒)
GCVE (CVE): GCVE-0-2025-55129
GCVE (VulDB): GCVE-100-333980
CNNVD: CNNVD-202512-326 - Revive Adserver 安全漏洞

Entryinfo

Created: 12/02/2025 07:55
Updated: 12/03/2025 14:53
Changes: 12/02/2025 07:55 (62), 12/03/2025 08:34 (1), 12/03/2025 14:53 (6)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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