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High 8.6Published Aug 22, 2026
CVE-2026-66917Joomla Extension - joomgalleryfriends.net - Stored XSS in JoomGallery < 4.4.0
Updated under an hour ago ()
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It affects joomgalleryfriends.net JoomGallery extension for Joomla. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Joomla Extension - joomgalleryfriends.net - Stored XSS in JoomGallery < 4.4.0 - An authenticated, privileged can store an XSS payload in any image causing JS execution in every visitor's browser.
- CVSS
- 8.6 HIGH (v4.0, CNA)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)
- CWE-79
- 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
- Deferred
- Record last updated
- Aug 24, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
joomgalleryfriends.net JoomGallery extension for Joomla joomgalleryfriends.net:joomgallery_extension_for_joomla (from the name) | 4.0.0-4.3.0 | CNA record |
References
- https://www.joomgalleryfriends.net/product
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.