CVE-2026-48907
Act now ● On CISA KEV — actively exploited
Actively exploited — on the CISA KEV list.
CVSS base
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
78.1%
99.6th percentile
CISA KEV
Listed
Added 2026-06-16 · patch by 2026-06-19
Weakness / dates
CWE-284
Published 2026-06-05 · modified 2026-07-23
CVSS breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2026-06-05 — Published (NVD)
- 2026-06-16 — Added to CISA KEV (actively exploited)
- 2026-06-19 — CISA patch-by deadline
- 2026-07-23 — Last modified (NVD)
Description
A vulnerability in the JCE editor extension for Joomla allows the creation of new editor profiles for unauthenticated users, ultimately resulting in PHP code upload and execution.