CVE-2026-10234: Mettle sendportal Campaign webview cross site scripting

Severity: low (CVSS 3.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-01 · updated 2026-07-22
Weakness: CWE-79

Description

A vulnerability was detected in Mettle sendportal up to 3.0.1. This affects an unknown part of the file /webview/ of the component Campaign Handler. The manipulation of the argument content results in cross site scripting. The attack can be launched remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Affected products

mettle sendportal: 3.0.0, 3.0.1

References

https://github.com/mettle/sendportal/
https://github.com/mettle/sendportal/issues/338
https://vuldb.com/cve/CVE-2026-10234
https://vuldb.com/submit/822923
https://vuldb.com/submit/825494
https://vuldb.com/vuln/367513
https://vuldb.com/vuln/367513/cti

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