CVE-2026-3043: A flaw has been found in itsourcecode Event Management System 1.0

Routine

MEDIUM 4.3DOWNGRADE

CVE-2026-3043 is a medium-severity flaw (CVSS 4.3) affecting event management system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw has been found in itsourcecode Event Management System 1.0. The impacted element is an unknown function of the file /admin/navbar.php. Executing a manipulation of the argument page can lead to cross site scripting. The attack may be performed from remote. The exploit has been published and may be used.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 76%)
CISA exploited list	No
Weakness	CWE-79, CWE-94
Published	2026-02-24
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: admerc

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-24 00:16 UTCPublished CVE record published
2026-06-17 10:42 UTCUpdated Record last modified

admerc event management system DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy event-management-system || rpm -q event-management-system || event-management-system --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison event-management-system sudo apt install event-management-system=<VERSION_BEFORE_1.0> sudo apt-mark hold event-management-system

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list event-management-system sudo dnf downgrade event-management-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add event-management-system

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-3043?

event management system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-3043 being exploited?

CVE-2026-3043 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-3043 affect?

CVE-2026-3043 affects event management system. Severity is medium (CVSS 4.3). A flaw has been found in itsourcecode Event Management System 1.0. The impacted element is an unknown function of the file /admin/navbar.php. Executing a manipulation of the argument page can lead to cross site scripting. The attack may be

How urgent is CVE-2026-3043?

Priority 26/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2026-3042 HIGH 7.3 DOWNGRADE A vulnerability was detected in itsourcecode Event Management System 1.0
CVE-2025-56243 MEDIUM 6.1 DOWNGRADE A Cross-Site Scripting (XSS) vulnerability was found in the register.php page of PuneethReddyHC Event Manageme
CVE-2024-44728 MEDIUM 6.1 DOWNGRADE Sourcecodehero Event Management System 1.0 allows Stored Cross-Site Scripting via parameters Full Name, Addres
CVE-2024-44727 CRITICAL 9.8 DOWNGRADE Sourcecodehero Event Management System1.0 is vulnerable to SQL Injection via the parameter 'username' in /even
CVE-2024-13007 MEDIUM 6.3 DOWNGRADE A vulnerability, which was classified as critical, was found in Codezips Event Management System 1.0

References

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