CVE-2026-23898
Joomla! Core - [20260305] - Arbitrary file deletion in com_joomlaupdate
Lack of input validation leads to an arbitrary file deletion vulnerability in the autoupdate server mechanism.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- 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 - [20260305] - Arbitrary file deletion in com_joomlaupdate
Lack of input validation leads to an arbitrary file deletion vulnerability in the autoupdate server mechanism.
- Record
CVE-2026-23898- CVSS 4.0
- 8.6 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Weakness
- CWE-73
- Updated
- 2026-11-02
EUVDEUVD-2026-17861
Lack of input validation leads to an arbitrary file deletion vulnerability in the autoupdate server mechanism.
- Record
EUVD-2026-17861- CVSS 4.0
- 8.6 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-m9qp-xh66-cmcx
Lack of input validation leads to an arbitrary file deletion vulnerability in the autoupdate...
Lack of input validation leads to an arbitrary file deletion vulnerability in the autoupdate server mechanism.
- Record
GHSA-m9qp-xh66-cmcx- CVSS 4.0
- 8.6 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-73
- Updated
- 2026-11-02
NVD
Lack of input validation leads to an arbitrary file deletion vulnerability in the autoupdate server mechanism.
- Record
CVE-2026-23898- CVSS 4.0
- 8.6 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-73
- Updated
- 2026-11-02
OSV
Lack of input validation leads to an arbitrary file deletion vulnerability in the autoupdate server mechanism.
- Record
CVE-2026-23898- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVBIT-joomla-2026-23898 No score
Joomla! Core - [20260305] - Arbitrary file deletion in com_joomlaupdate
Lack of input validation leads to an arbitrary file deletion vulnerability in the autoupdate server mechanism.
- Record
BIT-joomla-2026-23898- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
joomlaBitnami |
3.0.0 up to 5.4.4, 6.0.0 up to 6.0.4 | 5.4.46.0.4 |
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-2026-23898 is a high vulnerability (CVSS 8.6) in Joomla Joomla\!, published April 1, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.46%, the 40th percentile. Fixed in joomla 5.4.4.