Is CVE-2026-3513 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-3513 being exploited in the wild.

How severe is CVE-2026-3513?

Medium severity, with a CVSS score of 6.4, published 8 April 2026.

Which products and versions are affected?

RealMag777 TableOn up to and including 1.0.4.4.

Is there a fix for CVE-2026-3513?

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-2026-3513 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-3513?

Check whether you run RealMag777 TableOn 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.

CVE-2026-3513: realmag777 TableOn Stored XSS in tableon_button shortcode

CVE-2026-3513 · Severity: medium · CVSS 6.4 · Published 2026-04-08

The TableOn plugin for WordPress, which allows users to create filterable tables of posts, contains a security flaw that allows users with contributor-level access or higher to inject malicious scripts into website pages. These scripts will automatically run in the browser of any visitor who views the affected page. This could lead to unauthorized actions being performed on behalf of site administrators or the theft of sensitive session information.

Vendors: RealMag777.

Quick answers

Is CVE-2026-3513 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-3513 being exploited in the wild.
How severe is CVE-2026-3513?: Medium severity, with a CVSS score of 6.4, published 8 April 2026.
Which products and versions are affected?: RealMag777 TableOn up to and including 1.0.4.4.
Is there a fix for CVE-2026-3513?: 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-2026-3513 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-3513?: Check whether you run RealMag777 TableOn 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

The TableOn plugin is vulnerable to Stored Cross-Site Scripting (XSS) due to insufficient input sanitization and output escaping on user-supplied shortcode attributes within the 'tableon_button' shortcode. Specifically, the do_shortcode_button() function extracts attributes like 'class', 'help_link', 'popup_title', and 'help_title' and passes them to TABLEON_HELPER::draw_html_item(), which concatenates them into HTML using single quotes without escaping. This allows authenticated attackers with Contributor-level permissions or higher to inject arbitrary web scripts. The vulnerability is present in versions up to and including 1.0.4.4; users should update to the latest patched version.

Affected products

realmag777 TableOn – WordPress Posts Table Filterable up to and including 1.0.4.4

Timeline

2026-04-08: advisory: Initial publication of the vulnerability advisory.

References

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