CVE-2026-57734: tagDiv Composer Reflected XSS in td-composer

CVE-2026-57734 · Severity: high · CVSS 7.1 · Published 2026-07-13

tagDiv Composer is a popular page-building tool used for designing WordPress websites. A security flaw in this tool allows attackers to trick a site administrator or visitor into clicking a malicious link, which then executes unauthorized code in their browser. This could lead to the theft of login sessions, unauthorized website changes, or the redirection of visitors to malicious websites.

Technologies: tagDiv Composer. Vendors: tagDiv.

Quick answers

Is CVE-2026-57734 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-57734 being exploited in the wild.
How severe is CVE-2026-57734?
High severity, with a CVSS score of 7.1, published 13 July 2026.
Which products and versions are affected?
tagDiv Composer <= 5.4.3 (NVD); <= 5.4.5 (Patchstack).
Is there a fix for CVE-2026-57734?
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-2026-57734 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-57734?
Check whether you run tagDiv Composer 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 tagDiv Composer (td-composer) WordPress plugin. The flaw stems from the application's failure to properly sanitize or neutralize user-supplied input before including it in generated web pages. An unauthenticated remote attacker can exploit this by crafting a malicious URL and tricking a victim (such as a site administrator) into clicking it. Successful exploitation allows the execution of arbitrary JavaScript in the context of the victim's browser session, potentially leading to session hijacking or unauthorized administrative actions. While NVD lists the affected versions as <= 5.4.3, the primary source (Patchstack) indicates versions up to 5.4.5 are vulnerable.

Affected products

  • tagDiv tagDiv Composer (td-composer) <= 5.4.3 (NVD); <= 5.4.5 (Patchstack)

Timeline

  • 2026-01-31: other: Vulnerability reported by researcher Bonds
  • 2026-07-06: advisory: Initial advisory published by Patchstack
  • 2026-07-13: disclosed: CVE published in NVD dataset

References

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