9.8

CVE-2026-48902: Joomla! Core - [20260518] - Transport encryption downgrade for password and username reset links

Modified
Published 26-05-2026Last modified 05-06-2026

Vulnerability summary

CVE-2026-48902 is a critical (CVSS 9.8) vulnerability in joomla! project joomla! cms. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 24.2% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.33%
0%100%
Low · +0.07 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 26-05-2026
    PublishedVulnerability first disclosed.
  2. 05-06-2026
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.33%

Chance of exploitation in the next 30 days

Percentile

24%

Versus all other CVEs

30-day change

Increase +0.07 pp

From 0.25% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Joomla1 product
  • joomla\!≥ 3.0.0, < 5.4.6 | ≥ 6.0.0, < 6.1.1
Joomla! project1 product

2 vendors · 2 products

References

1 links