CVE-2025-4576 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in com.liferay:com.liferay.blogs.web. A fix is available for com.liferay:com.liferay.blogs.web — see the affected versions and patch details below.
Liferay Portal Reflected XSS in blogs-web
Exploitation Status
No confirmed exploitation observed yet
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2025-4576.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2025-4576 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 377,636 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
com.liferay:com.liferay.blogs.webReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
A reflected cross-site scripting (XSS) vulnerability in the Liferay Portal 7.4.0 through 7.4.3.133, and Liferay DXP 2025.Q1.0 through 2025.Q1.4 ,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.Q1.15, 7.4 GA through update 92 allows an remote non-authenticated attacker to inject JavaScript into the modules/apps/blogs/blogs-web/src/main/resources/META-INF/resources/blogs/entry_cover_image_caption.jsp
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | com.liferay:com.liferay.blogs.web | all versions | 6.0.139com.liferay:com.liferay.blogs.web:6.0.139 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for com.liferay:com.liferay.blogs.web, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update com.liferay:com.liferay.blogs.web to 6.0.139 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-4576 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2025-4576 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2025-4576. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
How to detect CVE-2025-4576
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id cve-2025-4576 -u https://target- Template
- Liferay Portal & DXP - Cross-Site Scripting
- Severity
- medium
- Impact
- Remote attackers can execute arbitrary JavaScript in users' browsers, leading to session hijacking or other client-side attacks.
- Remediation
- Update to the latest available version beyond 7.4.3.133 and 2025.Q1.4.
Template by ProjectDiscovery nuclei-templates (xtr0nix), MIT licensed. View the full template. Scan only systems you are authorised to test.
Frequently Asked Questions
Is CVE-2025-4576 in your dependencies?
O3 Security finds CVE-2025-4576 across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.