CVE-2026-48901
Joomla! Core - [20260517] - Incorrect Cache Key Construction for InputFilter objects
The InputFilter::getInstance() method omitted a security sensitive parameter from the instance cache key.
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
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Joomla! Core - [20260517] - Incorrect Cache Key Construction for InputFilter objects
The InputFilter::getInstance() method omitted a security sensitive parameter from the instance cache key.
- Record
CVE-2026-48901- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-524
- Updated
- 2026-11-02
EUVDEUVD-2026-31871
The InputFilter::getInstance() method omitted a security sensitive parameter from the instance cache key.
- Record
EUVD-2026-31871- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-phf8-w34q-995j
The InputFilter::getInstance() method omitted a security sensitive parameter from the instance...
The InputFilter::getInstance() method omitted a security sensitive parameter from the instance cache key.
- Record
GHSA-phf8-w34q-995j- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-524
- Updated
- 2026-11-02
NVD
The InputFilter::getInstance() method omitted a security sensitive parameter from the instance cache key.
- Record
CVE-2026-48901- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-524
- Updated
- 2026-11-02
OSV
The InputFilter::getInstance() method omitted a security sensitive parameter from the instance cache key.
- Record
CVE-2026-48901- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVBIT-joomla-2026-48901 No score
Joomla! Core - [20260517] - Incorrect Cache Key Construction for InputFilter objects
The InputFilter::getInstance() method omitted a security sensitive parameter from the instance cache key.
- Record
BIT-joomla-2026-48901- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
joomlaBitnami |
4.0.0 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-2026-48901 is a high vulnerability (CVSS 7.5) 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 0.24%, the 15th percentile. Fixed in joomla 5.4.6.