CVE-2025-33138Network attack vector

Browser code execution via HTML injection

Published May 22, 2025 · Updated Aug 26, 2025

HTML injection in IBM Aspera Faspex 5.0.0 through 5.0.12 allows remote authenticated users to execute browser code through stored input. IBM identifies no affected field, request, or rendering function, so the exact input-handling failure is undisclosed. A low-privilege account and a victim viewing the injected content are required; execution remains within the hosting site's browser context.

CVSS severity5.4
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTML injection in IBM Aspera Faspex 5.0.0 through 5.0.12 allows remote authenticated users to execute browser code through stored input. IBM identifies no affected field, request, or rendering function, so the exact input-handling failure is undisclosed. A low-privilege account and a victim viewing the injected content are required; execution remains within the hosting site's browser context.

The record

CVE
CVE-2025-33138
Published
May 22, 2025
Updated
Aug 26, 2025
Vendor
IBM
Product
IBM Aspera Faspex
Classifications
CWE-80, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.0.0 <=5.0.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · IBM Aspera Faspexversion=5.0.0 <=5.0.12

Published CVSS scores

5.4IBMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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