EUVD-2025-200129Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Unicode normalization
|
| Impact | CVSS score of 5.4 (MEDIUM). |
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Alert meAnalysisAIv1 – Mar 15, 2026
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.
Earlier versions of this analysis (1)
RemediationAI
Monitor vendor advisories for patches. Apply mitigations such as network segmentation, access restrictions, and monitoring.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Improper Handling of Unicode Encoding (CWE-176).
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2Executive ViewAI
CVE-2025-55129 presents moderate security risk rated CVSS 5.4. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
More in Revive Adserver
View allAn attacker could send a specifically crafted payload to the XML-RPC invocation script and trigger the unserialize() cal
Authorization bypass in Revive Adserver 5.5.2 and 6.0.1 and earlier versions causes an logged in attacker to change othe
Authenticated SQL injection in Revive Adserver 6.0.0 allows a logged-in user to execute crafted payloads that can disrup
Use of cryptographically weak PRNG in the password recovery token generation of Revive Adserver < v4.2.1 causes a potent
Multiple cross-site request forgery (CSRF) vulnerabilities in OpenX 2.8.11 and earlier allow remote attackers to hijack
Vulnerability in the generation of session IDs in revive-adserver < 5.3.0, based on the cryptographically insecure uniqi
A security restriction bypass vulnerability has been discovered in Revive Adserver version < 5.0.5 by HackerOne user hoa
HackerOne community member Dang Hung Vi (vidang04) has reported an uncontrolled resource consumption vulnerability in th
Missing authorization check in Revive Adserver 5.5.2 and 6.0.1 and earlier versions causes users on the system to delete
Revive Adserver before 4.0.1 allows remote attackers to execute arbitrary code via serialized data in the cookies relate
Reflected cross-site scripting in the Revive Adserver administrative interface (verified against version 5.5.2, with a 6
Improper neutralisation of input in Revive Adserver 6.0.0+ causes a reflected XSS attack in the banner-zone.php script.
GitHub PoC
Exploit-DB