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CVE-2025-68669VulnerabilityPublished Updated

CVE-2025-68669: nanbingxyz 5ire · Cross-site Scripting

Affects nanbingxyz 5ireSource CVE Database V5

0

Not known to be exploited · CVSS 9.7 Critical.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score
9.7Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

Affected software

ProductAffectedFixed in
GitHubnanbingxyz/5irepkg:github/nanbingxyz/5ireOther threatsAffected
  • <=0.15.2
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

To mitigate CVE-2025-68669, European organizations should immediately implement the following measures: 1) Disable or restrict the use of Mermaid diagrams within 5ire, especially those allowing HTML rendering, until a vendor patch is available. 2) Configure the markdown-it-mermaid plugin to use a stricter securityLevel setting (e.g., 'strict' or 'antiscript') to prevent HTML injection. 3) Employ robust input validation and sanitization on any user-generated content that may be rendered by 5ire, particularly Mermaid diagrams. 4) Educate users about the risks of opening untrusted Mermaid diagrams or AI assistant content, emphasizing caution with unsolicited files or links. 5) Monitor network and endpoint logs for suspicious activity indicative of exploitation attempts, such as unexpected script execution or anomalous process behavior. 6) Segment and restrict network access for systems running 5ire to limit exposure. 7) Engage with the vendor for timely patch updates and apply them promptly once available. 8) Consider deploying endpoint detection and response (EDR) solutions capable of detecting exploitation behaviors related to script injection and RCE. These targeted actions go beyond generic advice by focusing on the specific plugin configuration and user interaction vectors involved in this vulnerability.

Description

5ire is a cross-platform desktop artificial intelligence assistant and model context protocol client. In versions 0.15.2 and prior, an RCE vulnerability exists in useMarkdown.ts, where the markdown-it-mermaid plugin is initialized with securityLevel: 'loose'. This configuration explicitly permits the rendering of HTML tags within Mermaid diagram nodes. This issue has not been patched at time of publication.

References

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