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VulnerabilityPublished

CVE-2025-43762: Liferay Portal · Unthrottled Resource Allocation

Affects Liferay PortalSource CVE Database V5

0

Not known to be exploited · CVSS 5.3 Medium.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 32% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Aug 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 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Liferay PortalAffected
  • =7.4.0
Fixed in–

AI-suggested

European organizations should implement strict upload controls on Liferay Portal forms, including limiting the number of files per user/session and enforcing maximum file size restrictions. Administrators should monitor storage usage and set alerts for unusual spikes in document_library size. Implementing web application firewalls (WAF) with rate-limiting rules targeting file upload endpoints can help mitigate abuse. Access controls should be reviewed to restrict upload capabilities to trusted users where possible. Since no official patches are currently linked, organizations should engage with Liferay support for interim fixes or workarounds. Regular backups of portal data and robust incident response plans will help recover quickly from potential attacks. Additionally, logging and monitoring upload activities can aid in early detection of exploitation attempts. Network segmentation and limiting exposure of the portal to only necessary user groups can reduce attack surface. Finally, educating users about the risk and monitoring for suspicious upload behavior is recommended.

Description

Liferay Portal 7.4.0 through 7.4.3.132, and Liferay DXP 2025.Q1.0 through 2025.Q1.1, 2024.Q4.0 through 2024.Q4.7, 2024.Q3.1 through 2024.Q3.13, 2024.Q2.0 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.14 and 7.4 GA through update 92 allow users to upload an unlimited amount of files through the forms, the files are stored in the document_library allowing an attacker to cause a potential DDoS.

References

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