CVE-2026-66917Disclosure

LOWCVSS 8.6 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

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0.5/ 10 priority

Sources & remediation

Other references

https://www.joomgalleryfriends.net/

Weakness type (CWE)

CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

Patch or workaround signal is available
2 mentions across 1 observed day

What's happening

Patch or workaround mentioned in 1 signal
Technical details provided in 2 signals
Disclosure: 2 classified signals
2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d

Signal classification1 categories

Disclosure

2100.0%

Referenced assets2 URLs

By indicator

Full discourse2 posts

ADK Cyber@ADKCyber46d
Disclosure
Joomla sites using JoomGallery < 4.4.0 face stored XSS risk (CVE-2026-66917, CVSS 8.6). Review and update the extension if deployed. via NVD Recent High CVSS #CyberSecurity #InfoSec #Vulnerability https://t.co/M3iozqyduN
Post summary
The tweet announces CVE-2026-66917, a stored XSS vulnerability in JoomGallery versions below 4.4.0, with a CVSS score of 8.6, and advises updating the extension.
0000030
93 followersView on X
Vulmon Vulnerability Feed@VulmonFeeds46d
Disclosure
CVE-2026-66917 Stored XSS in JoomGallery < 4.4.0 via Image Upload https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-66917 Customizable Vulnerability Alerts: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=4
Post summary
The text announces a stored XSS vulnerability in JoomGallery versions below 4.4.0 triggered through image uploads.
00000107
4.1K followersView on X

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