CVE-2026-78071 Joomla Extension - digital-peak.com - Authenticated, privileged stored XSS in DP Calendar 7.0.0-8.19.5, 9.0.0-10.12.0

High 7.5 Published Updated

Privileged users can inject malicious scripts via location titles in DP Calendar, leading to stored XSS and potential account takeover.

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

What is CVE-2026-78071?

CVE-2026-78071 is a high-severity cross-site scripting vulnerability in digital-peak.com DP Calendar extension for Joomla, published on 28 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Joomla Extension - digital-peak.com - Authenticated, privileged stored XSS in DP Calendar 7.0.0-8.19.5, 9.0.0-10.12.0 - Location title is rendered in data attribute without escaping leads to XSS, needs create permission in DPCalendar.

Weakness: CWE-79

Which versions are affected by CVE-2026-78071?

How do I fix CVE-2026-78071?

No fix has been published for CVE-2026-78071 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-78071 being exploited?

There is no known exploitation of CVE-2026-78071 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-32gf-548r-6r9c.

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