CVE-2025-43736Network attack vector

Service slowdown via profile-image size-check bypass

Published Aug 12, 2025 · Updated Aug 12, 2025

Denial of service in affected Liferay Portal and DXP releases allows remote attackers to slow the service through oversized profile images. UploadImageUtil.getMaxFileSize relied on the current logo URL to select the portrait limit, while affected forms omitted the portrait type needed to enforce the intended 300 KB maximum. A reachable profile-image upload is required; accepted oversized files consume service resources, with no reported crash or data impact.

CVSS severity6.9
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Denial of service in affected Liferay Portal and DXP releases allows remote attackers to slow the service through oversized profile images. UploadImageUtil.getMaxFileSize relied on the current logo URL to select the portrait limit, while affected forms omitted the portrait type needed to enforce the intended 300 KB maximum. A reachable profile-image upload is required; accepted oversized files consume service resources, with no reported crash or data impact.

The record

CVE
CVE-2025-43736
Published
Aug 12, 2025
Updated
Aug 12, 2025
Vendor
Liferay
Product
Liferay Portal
Classifications
CWE-770, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 12, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=7.4.3.0 <=7.4.3.132

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Liferay · Liferay Portalversion=7.4.3.0 <=7.4.3.132
Liferay · Liferay DXPversion=2024.Q1.1 <=2024.Q1.16; version=2024Q2.0 <=2023.Q2.13; version=2024.Q3.1 <=2024.Q3.13; version=2024.Q4.0 <=2024.Q4.7; version=2025.Q1.0 <=2025.Q1.8; version=7.4.13 <=7.4.13-u92

Published CVSS scores

6.9Liferay Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/RE:L
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1499.004Application or System Exploitation

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo