Quick answers
- Is CVE-2026-57728 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-57728 being exploited in the wild.
- How severe is CVE-2026-57728?
- High severity, with a CVSS score of 7.1, published 13 July 2026.
- Which products and versions are affected?
- UX-themes Flatsome <= 3.20.5.
- Is there a fix for CVE-2026-57728?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-57728 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-57728?
- Check whether you run UX-themes Flatsome at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A Reflected Cross-Site Scripting (XSS) vulnerability exists in the UX-themes Flatsome theme for WordPress through version 3.20.5. The flaw stems from improper neutralization of user-supplied input during web page generation (CWE-79). An unauthenticated remote attacker can exploit this by sending a specially crafted link to a victim; if the victim (such as a site administrator) clicks the link, the malicious script is executed within the context of their browser session. This can result in session hijacking, unauthorized data access, or modification of site content. As of the advisory date, no official patch has been released.
Affected products
- UX-themes Flatsome <= 3.20.5
Timeline
- 2026-02-16: other: Vulnerability reported by researcher Bonds
- 2026-07-06: advisory: Initial advisory published by Patchstack
- 2026-07-13: disclosed: CVE published to NVD dataset