CVE-2026-30894 json
Joomla! Core - [20260503] - XSS in com_contenthistory
published 2026-05-26 5 mo ago modified 2026-09-08 2 mo ago also BIT-joomla-2026-30894 , EUVD-2026-31872
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 7%
- public exploits
- 0
- none known
Summary
Lack of output escaping leads to a XSS vector in the content history component.
Patch / fix
- bitnami joomla 5.4.6, 6.1.1
- joomla joomla! 5.4.6, 6.1.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 5 mo ago
Exploit prediction
0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N |
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:L/VA:L/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 |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | joomla | >=3.0.0, <5.4.6 >=6.0.0, <6.1.1 |
5.4.6 6.1.1 |
Affected products
- Joomla! Project Joomla! CMS
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
developer.joomla.org
/security-centre/1035-20260503-core-xss-in-com-contenthistory
vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-30894
web
Sources
- CVE List CVE-2026-30894
- NVD CVE-2026-30894
- OSV BIT-joomla-2026-30894
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.