Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Liferay Portal 7.4.3.35 through 7.4.3.110 and the com.liferay.calendar.web module before 5.0.88 have cross-site scripting flaws in the Calendar widget's event invitations. A remote attacker who injects a crafted payload into a user's first, middle, or last name can run arbitrary script or HTML. Upgrade Liferay Portal to 7.4.3.111 or later and com.liferay.calendar.web to 5.0.88 or later.
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 |
|---|---|---|---|---|
| 4.8 | Medium | 4.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N | CNA (Liferay) |
- CISA KEV Not listed.
- EPSS 0.0023, the 13th 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