What is the CVSS score of CVE-2025-55126?

CVE-2025-55126 has a CVSS 3.0 base score of 6.5 (Medium). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of Revive Adserver are affected by CVE-2025-55126?

CVE-2025-55126 presents notable security risk, a cross-site scripting vulnerability rated CVSS 6.5. Attackers could inject scripts to steal sessions or perform actions as authenticated users.

Is there a public PoC exploit available for CVE-2025-55126?

Yes, a public proof-of-concept exploit is available for CVE-2025-55126. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2025-55126?

Within 7 days: Identify affected systems and apply vendor patches promptly. Verify Content-Security-Policy and output encoding.

Revive Adserver CVE-2025-55126

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2025-11-20 support@hackerone.com

XSS Revive Adserver

6.5

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:23 vuln.today

PoC Detected

Jan 14, 2026 - 21:16 vuln.today

Public exploit code

CVE Published

Nov 20, 2025 - 19:16 nvd

MEDIUM 6.5

DescriptionCVE.org

AnalysisAI

HackerOne community member Dang Hung Vi (vidang04) has reported a stored XSS vulnerability involving the navigation box at the top of advertiser-related pages, with campaign names being the vector. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. HackerOne community member Dang Hung Vi (vidang04) has reported a stored XSS vulnerability involving the navigation box at the top of advertiser-related pages, with campaign names being the vector for the stored XSS Affected products include: Aquaplatform Revive Adserver.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

CVE-2025-55126 vulnerability details – vuln.today

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Revive Adserver CVE-2025-55126

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code