Dive has Cross-Site Scripting vulnerability that can escalate to Remote Code Execution

published 2025-12-19 10 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-204564

cvss: 9.7; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits: 0; none known

Dive is an open-source MCP Host Desktop Application that enables integration with function-calling LLMs. A critical Stored Cross-Site Scripting (XSS) vulnerability exists in versions prior to 0.11.1 in the Mermaid diagram rendering component. The application allows the execution of arbitrary JavaScript via `javascript:`. An attacker can exploit this to inject a malicious Model Context Protocol (MCP) server configuration, leading to Remote Code Execution (RCE) on the victim's machine when the node is clicked. Version 0.11.1 fixes the issue.

Patch / fix

fixed in 1

openagentplatform dive 0.11.1

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 10 mo ago (2025-12-19)

Exploit prediction

0.57% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/OpenAgentPlatform/Dive/security/advisories/GHSA-xv8m-365j-x6h2 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.7	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
NVD	3.1	9.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected products

OpenAgentPlatform Dive

Classification

Weakness

CWE-94 Improper Control of Generation of Code
CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /OpenAgentPlatform/Dive/security/advisories/GHSA-xv8m-365j-x6h2
exploit, vendor-advisory

Sources

CVE List CVE-2025-66580
NVD CVE-2025-66580

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary