CVE-2026-77990

MediumCVSS 5.3/10Last modified Aug 28, 2026

Description

Joomla Extension - joomlaeventmanager.net - Attendee lists readable by any logged-in user in Joomla Event Manager < 5.0.1 - A non-manager can therefore read attendee names, usernames, registration dates and statuses for events they do not manage, including lists belonging to unpublished events.

Metrics

CVSS 4.0 5.3/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/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

Weakness enumeration

CWE-639

Affected software

Vendor	Product	Versions
joomlaeventmanager.net	JEM - Joomla Event Manager extension for Joomla	1.0.0-5.0.0

References

https://www.joomlaeventmanager.net/

Timeline

Published: Aug 27, 2026
Last modified: Aug 28, 2026
NVD status: Deferred

Related CVEs from 2026

CVE-2026-779919.4Joomla Extension - joomlaeventmanager.net - Privileged remote code execution in Joomla Event Manager < 5.0.1 - The administrator source mode CVE-2026-779929.5Joomla Extension - fabrikar.com - heredoc terminator breakout in the calc element in Fabrik < 4.7.2 - The onUpdateComment endpoint did not p CVE-2026-779935.3Joomla Extension - joomlack.fr - Reflected XSS in Page Builder CK < 3.6.5 - The Joomla extension Page Builder CK is vulnerable to a reflecte CVE-2026-779949.3Joomla Extension - joomlack.fr - Second order SQL injection in Page Builder CK < 3.6.5 - The Joomla extension Page Builder CK is vulnerable CVE-2026-7799510.0Joomla Extension - miniorange.com - Arbitrary account takeover in miniOrange OAuth Client < 3.2.0, OAuth Single Sign-On – OIDC SSO < 1.2.2, CVE-2026-779967.5Joomla Extension - yootheme.com - Authenticated, privileged stored XSS in YOOtheme Pro 1.0.0-5.0.41 - Lack of escaping in the location custo CVE-2026-779975.1Joomla Extension - yootheme.com - Authenticated, privileged information disclosure in YOOtheme Pro 1.0.0-5.0.41 - A missing access check all CVE-2026-7799810.0Joomla Extension - miniorange.com - Unauthenticated Authentication Bypass via SAMLResponse Parameter in miniOrange SAML SSO < 11.0.2, SAML S CVE-2026-779998.7Joomla Extension - j2commerce.com - Unauthenticated PayPal callback forgery leading to order confirmation fraud in J2Store 1.0.0-3.3.21, 4.0 CVE-2026-780005.3Joomla Extension - j2commerce.com - Reflected XSS via `filter_tag`, `pricefrom` and `priceto` in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4 CVE-2026-780016.4The Post and Page Builder by BoldGrid – Visual Drag and Drop Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via th CVE-2026-780027.5A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the RainerScript `replace()` function