Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Liferay Portal (release.portal.bom) versions before 7.4.3.4 and Liferay DXP (release.dxp.bom) versions 7.3.0 to before 7.3.10.u4 and 7.2.0 to before 7.2.10.fp15 have a Calendar module flaw where user-supplied data is not escaped in the default notification email template. A remote authenticated user can inject HTML or script through a calendar event title or their user name, enabling content spoofing or cross-site scripting depending on the recipient's mail client. Upgrade Liferay Portal to 7.4.3.4 or Liferay DXP to 7.3.10.u4 or 7.2.10.fp15.
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 |
|---|---|---|---|---|
| 5.4 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N | CNA (Liferay) |
- CISA KEV Not listed.
- EPSS 0.0047, the 41st percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:11 UTC First seen by agentprime
- 31 Oct 2026, 15:11 UTC Confirmed by OSV