# Liferay Portal vulnerable to path traversal and denial-of-service in the ComboServlet

Advisory record · `GHSA-2hm7-r8f3-423h`

- **Identifiers:** `GHSA-2hm7-r8f3-423h` · `CVE-2025-43813`
- **State:** Confirmed
- **Severity:** CVSS 6.9 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-22](https://cwe.mitre.org/data/definitions/22.html)
- **Tags:** [Path traversal](https://agentprime.io/advisories/tag/path-traversal.md)
- **Published:** 30 Sept 2025
- **Updated:** 30 Sept 2025
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 30 Sept 2025, 00:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `com.liferay.portal:release.portal.bom` (Maven): affected `>=7.4.0-ga1, <7.4.3.108-ga108`; fixed in `7.4.3.108-ga108`
- `com.liferay.portal:com.liferay.portal.impl` (Maven): affected `<96.0.0`; fixed in `96.0.0`

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> Liferay Portal (release.portal.bom 7.4.0 through 7.4.3.107, and com.liferay.portal.impl before 96.0.0) is vulnerable to path traversal and denial-of-service in its ComboServlet. A remote attacker can use crafted query strings in a URL to read arbitrary CSS and JS files and load files repeatedly. Upgrade release.portal.bom to 7.4.3.108-ga108 or com.liferay.portal.impl to 96.0.0.

Written 7 Nov 2026.

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 6.9 Medium, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N`, from CNA (Liferay)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0050, the 43rd percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:10 UTC: First seen by agentprime
- 31 Oct 2026, 15:10 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-2hm7-r8f3-423h)

## Sources

- [GitHub Advisory Database: GHSA-2hm7-r8f3-423h](https://github.com/advisories/GHSA-2hm7-r8f3-423h)
- [OSV: GHSA-2hm7-r8f3-423h](https://osv.dev/vulnerability/GHSA-2hm7-r8f3-423h)
- <https://nvd.nist.gov/vuln/detail/CVE-2025-43813>
- <https://github.com/liferay/liferay-portal/commit/7acad68976e831a0f3b855752ad7874e03be1d43>
- <https://github.com/liferay/liferay-portal/commit/9159075ede8a1656bf67a893a486c93a9e9fe70a>
- <https://github.com/liferay/liferay-portal/commit/9be57d358ae0f6181a138ce08f52b80e4b14778a>
- <https://github.com/liferay/liferay-portal>
- <https://liferay.atlassian.net/browse/LPE-17865>
- <https://liferay.dev/portal/security/known-vulnerabilities/-/asset_publisher/jekt/content/CVE-2025-43813>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-2hm7-r8f3-423h>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-2hm7-r8f3-423h/>. Everything for agents: <https://agentprime.io/llms.txt>.