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VulnerabilityPublished Updated

CVE-2024-0317: FireEye EX · Cross-site Scripting

Affects FireEye EXSource CVE Database V5

0

Not known to be exploited · CVSS 5.4 Medium.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
5.4Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 23% 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:U/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 15 Jan 2024

  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 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
FireEye FireEye EXAffected
  • =9.0.3.936727
Fixed in–

AI-suggested

  1. Immediate mitigation should focus on restricting access to the FireEye EX management interface to trusted networks and users only, employing network segmentation and strict access controls.
  2. Implement multi-factor authentication (MFA) for all users accessing FireEye EX to reduce the risk of session hijacking.
  3. Educate users and administrators about the risks of clicking on untrusted links or inputs, emphasizing caution with unexpected or suspicious URLs or parameters.
  4. Monitor logs for unusual activity or repeated attempts to exploit the 'type' and 's_f_name' parameters.
  5. Apply any vendor-released patches or updates promptly once available.
  6. Consider deploying web application firewalls (WAFs) with rules designed to detect and block XSS payloads targeting these parameters.
  7. Conduct regular security assessments and penetration tests focusing on the FireEye EX interface to identify and remediate similar input validation issues.
  8. Review and harden session management policies to limit session lifetime and scope, reducing the window of opportunity for attackers.

Description

Cross-Site Scripting in FireEye EX, affecting version 9.0.3.936727. Exploitation of this vulnerability allows an attacker to send a specially crafted JavaScript payload via the 'type' and 's_f_name' parameters to an authenticated user to retrieve their session details.

References

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