CVE-2026-26483 Cross-site scripting in n/a
Attackers can inject malicious JavaScript into templates, executing code in victim browsers to potentially steal sessions or data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-26483?
CVE-2026-26483 is a medium-severity cross-site scripting vulnerability in n/a, published on 20 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Mettle SendPortal 3.0.1 and earlier contains a stored cross-site scripting (XSS) vulnerability in the template management functionality. The application fails to properly sanitize user-supplied input in the content parameter of the /templates endpoint, allowing an attacker to persistently inject malicious JavaScript code that is executed in the browsers of users who access the affected template.
Weakness: CWE-79
Which versions are affected by CVE-2026-26483?
How do I fix CVE-2026-26483?
No fix has been published for CVE-2026-26483 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-2026-26483 being exploited?
There is no known exploitation of CVE-2026-26483 in the wild and no public exploit code.
Sources
Also known as GHSA-7868-rq46-qvm4.