Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Liferay Portal 7.4.3.82 through 7.4.3.128 and multiple Liferay DXP releases are affected by a cross-site scripting flaw in the Frontend JS module, where the toastData parameter can be used to inject arbitrary script or HTML. A remote attacker can exploit this to run script in a user's browser. Upgrade Liferay Portal to 7.4.3.129, or Liferay DXP to 2024.Q1.13, 2024.Q3.1, or 2024.Q4.0, depending on the release line in use. The source gives no workaround.
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
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 5.1 | Medium | 4.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N | CNA (Liferay) |
- CISA KEV Not listed.
- EPSS 0.0029, the 22nd percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:18 UTC First seen by agentprime
- 31 Oct 2026, 14:18 UTC Confirmed by OSV