CVE-2026-21626 Extension - stackideas.com - Information disclosure in post custom fields in EasyDiscuss 1.0.0-5.0.15 for Joomla

Critical 9.2 Published Updated

Attackers can access restricted forum post custom fields via JSON output due to missing access control checks in the EasyDiscuss extension.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-21626?

CVE-2026-21626 is a critical vulnerability in Stackideas.com EasyDiscuss extension for Joomla, published on 6 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Access control settings for forum post custom fields are not applied to the JSON output type, leading to an ACL violation vector an information disclosure

Weakness: CWE-200

Which versions are affected by CVE-2026-21626?

It affects 1 product.

Products include Stackideas Easydiscuss.

How do I fix CVE-2026-21626?

No fix has been published for CVE-2026-21626 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-21626 being exploited?

There is no known exploitation of CVE-2026-21626 in the wild and no public exploit code.

Sources

Also known as GHSA-xfjv-gcf8-3jqc.

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