CVE-2026-81021 SupportCandy 3.2.9 - 3.5.2 - Unauthenticated Ticket Attachment Disclosure

Medium 5.3 Published Updated

Unauthenticated attackers can read protected customer attachments in SupportCandy by enumerating IDs due to missing authorization checks.

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-2026-81021?

CVE-2026-81021 is a medium-severity missing authorization vulnerability in Unknown SupportCandy, published on 9 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The SupportCandy WordPress plugin before 3.5.3 does not perform an authorization check on one of its support-ticket attachment download paths, allowing unauthenticated attackers to read protected customer-uploaded attachments by enumerating sequential attachment identifiers.

Weakness: CWE-200

Which versions are affected by CVE-2026-81021?

How do I fix CVE-2026-81021?

No fix has been published for CVE-2026-81021 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-81021 being exploited?

There is no known exploitation of CVE-2026-81021 in the wild and no public exploit code.

Sources

Also known as GHSA-c3ww-3c8m-36r9.

Is CVE-2026-81021 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free