CVE-2026-48902
Joomla! Core - [20260518] - Transport encryption downgrade for password and username reset links
The password and username reset features created plain http links for https connections if the "Force SSL" flag wasn't explicitly set.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Joomla! Core - [20260518] - Transport encryption downgrade for password and username reset links
The password and username reset features created plain http links for https connections if the "Force SSL" flag wasn't explicitly set.
- Record
CVE-2026-48902- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-319
- Updated
- 2026-11-02
EUVDEUVD-2026-31878
The password and username reset features created plain http links for https connections if the "Force SSL" flag wasn't explicitly set.
- Record
EUVD-2026-31878- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-w4ph-7vgc-vxrf
The password and username reset features created plain http links for https connections if the ...
The password and username reset features created plain http links for https connections if the "Force SSL" flag wasn't explicitly set.
- Record
GHSA-w4ph-7vgc-vxrf- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-319
- Updated
- 2026-11-02
NVD
The password and username reset features created plain http links for https connections if the "Force SSL" flag wasn't explicitly set.
- Record
CVE-2026-48902- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-319
- Updated
- 2026-11-02
OSV
The password and username reset features created plain http links for https connections if the "Force SSL" flag wasn't explicitly set.
- Record
CVE-2026-48902- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVBIT-joomla-2026-48902 No score
Joomla! Core - [20260518] - Transport encryption downgrade for password and username reset links
The password and username reset features created plain http links for https connections if the "Force SSL" flag wasn't explicitly set.
- Record
BIT-joomla-2026-48902- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
joomlaBitnami |
3.0.0 up to 5.4.6, 6.0.0 up to 6.1.1 | 5.4.66.1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-48902 is a critical vulnerability (CVSS 9.8) in Joomla Joomla\!, published May 26, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.25%, the 16th percentile. Fixed in joomla 5.4.6.