What is CVE-2026-48902?

CVE-2026-48902 is a critical-severity vulnerability in Joomla Joomla\!, classified under Cleartext Transmission of Sensitive Information. CVSS score: 9.8/10. Published 2026-05-26.

How severe is CVE-2026-48902?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Joomla Joomla\!

CVE-2026-48902

The password and username reset features created plain http links for https connections if the "Force SSL" flag wasn't explicitly set.

Published 2026-05-26 · last modified 2026-07-24.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (24.0th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.001

Affected products

Joomla Joomla\!
Joomla! Project Cms — versions 3.9.0-5.4.5, 6.0.0-6.1.0

Weakness classification (CWE)

CWE-319 — Cleartext Transmission of Sensitive Information

References

developer.joomla.org/security-centre/1050-20260518-core-transport-encryption-do… (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-48902?: CVE-2026-48902 is a critical-severity vulnerability in Joomla Joomla\!, classified under Cleartext Transmission of Sensitive Information. CVSS score: 9.8/10. Published 2026-05-26.
How severe is CVE-2026-48902?: Critical severity. CVSS v3 base score is 9.8 out of 10.