CVE-2026-73373Joomla! Core - [20260810] - Unrestricted uploads of SHTML files in Joomla 1.0.0-5.4.7, 6.0.0-6.1.2
Updated under an hour ago ()
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It affects Joomla! Project Joomla! CMS and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Joomla! Core - [20260810] - Unrestricted uploads of SHTML files in Joomla 1.0.0-5.4.7, 6.0.0-6.1.2 - The default list of dangerous files did not include SHTML files. On servers that executed these files, that could lead to code execution.
- CVSS
- 8.9 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
- Weakness (CWE)
- CWE-434
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Joomla
- NVD analysis
- Analyzed
- Record last updated
- Aug 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Joomla! Project Joomla! CMS joomla_project:joomla_cms (from the name) | 1.0.0-5.4.6; 6.0.0-6.1.2 | CNA record |
Joomla! Project Joomla! Framework Filesystem package joomla_project:joomla_framework_filesystem_package (from the name) | 1.0.0-3.3.0; 4.0.0-4.2.0 | CNA record |
joomla joomla! joomla:joomla! | from 1.0.0 before 5.4.8; from 6.0.0 before 6.1.3 | NVD |
References
- https://www.joomla.org/product
- https://developer.joomla.org/security-centre/1077-20260810-core-unrestricted-uploads-of-shtml-files.htmlvendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.