CVE-2025-63082
Joomla! Core - [20260101] - Inadequate content filtering for data URLs
Lack of input filtering leads to an XSS vector in the HTML filter code related to data URLs in img tags.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Passive
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Joomla! Core - [20260101] - Inadequate content filtering for data URLs
Lack of input filtering leads to an XSS vector in the HTML filter code related to data URLs in img tags.
- Record
CVE-2025-63082- CVSS 4.0
- 5.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2026-0998
Lack of input filtering leads to an XSS vector in the HTML filter code related to data URLs in img tags.
- Record
EUVD-2026-0998- CVSS 4.0
- 5.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-w359-ppwg-hrqh
Lack of input filtering leads to an XSS vector in the HTML filter code related to data URLs in...
Lack of input filtering leads to an XSS vector in the HTML filter code related to data URLs in img tags.
- Record
GHSA-w359-ppwg-hrqh- CVSS 4.0
- 5.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/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
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
Lack of input filtering leads to an XSS vector in the HTML filter code related to data URLs in img tags.
- Record
CVE-2025-63082- CVSS 4.0
- 5.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/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
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
Lack of input filtering leads to an XSS vector in the HTML filter code related to data URLs in img tags.
- Record
CVE-2025-63082- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVBIT-joomla-2025-63082 No score
Joomla! Core - [20260101] - Inadequate content filtering for data URLs
Lack of input filtering leads to an XSS vector in the HTML filter code related to data URLs in img tags.
- Record
BIT-joomla-2025-63082- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
joomlaBitnami |
4.0.0 up to 5.4.2, 6.0.0 up to 6.0.2 | 5.4.26.0.2 |
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-2025-63082 is a medium vulnerability (CVSS 5.9) in Joomla Joomla\!, published January 6, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.21%, the 11th percentile. Fixed in joomla 5.4.2.