Is there a public PoC exploit available for EUVD-2018-21818?

Yes, a public proof-of-concept exploit is available for EUVD-2018-21818. Prioritise patching immediately. EPSS: 0.0%.

Merge Pacs EUVD-2018-21818

Q: What is the CVSS score of EUVD-2018-21818?

EUVD-2018-21818 has a CVSS 4.0 base score of 6.9 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

| CVE-2018-25298 MEDIUM

Cross-Site Request Forgery (CSRF) (CWE-352)

2026-04-29 VulnCheck

CSRF Authentication Bypass Merge Pacs

6.9

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

6.9 MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

PoC Detected

Apr 30, 2026 - 15:48 vuln.today

Public exploit code

CVSS changed

Apr 29, 2026 - 20:22 NVD

5.3 (MEDIUM) 6.9 (MEDIUM)

EUVD ID Assigned

Apr 29, 2026 - 20:00 euvd

EUVD-2018-21818

CVE Published

Apr 29, 2026 - 19:24 nvd

MEDIUM 6.9

DescriptionCVE.org

Merge PACS 7.0 contains a cross-site request forgery vulnerability that allows attackers to perform unauthorized actions by crafting malicious HTML forms targeting the merge-viewer endpoint. Attackers can submit POST requests to /servlet/actions/merge-viewer/summary with login credentials to hijack user sessions and gain unauthorized access to the PACS system.

AnalysisAI

Merge PACS 7.0 contains a cross-site request forgery vulnerability that allows attackers to perform unauthorized actions by crafting malicious HTML forms targeting the merge-viewer endpoint. Rated medium severity (CVSS 6.9), 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 Request Forgery (CSRF) (CWE-352), which allows attackers to trick authenticated users into performing unintended actions. Merge PACS 7.0 contains a cross-site request forgery vulnerability that allows attackers to perform unauthorized actions by crafting malicious HTML forms targeting the merge-viewer endpoint. Attackers can submit POST requests to /servlet/actions/merge-viewer/summary with login credentials to hijack user sessions and gain unauthorized access to the PACS system. Affected products include: Merge Merge Pacs.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement anti-CSRF tokens, validate Origin/Referer headers, use SameSite cookie attribute.