CVE-2026-56056: The Post Grid stored cross-site scripting

CVE-2026-56056 · Severity: medium · CVSS 6.5 · Published 2026-10-29

The Post Grid is a WordPress plugin that displays grid layouts of posts on websites. A stored cross-site scripting vulnerability allows attackers with contributor or developer privileges to inject malicious scripts that persist on the site and can steal visitor data or hijack accounts. Exploitation requires a privileged user to perform an action such as clicking a malicious link or submitting a form.

Vendors: Mamunur Rashid.

Quick answers

Is CVE-2026-56056 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-56056 being exploited in the wild.
How severe is CVE-2026-56056?
Medium severity, with a CVSS score of 6.5, published 29 October 2026.
Which products and versions are affected?
Mamunur Rashid The Post Grid through 7.9.7.
Is there a fix for CVE-2026-56056?
Yes: fixed in 7.9.8. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-56056 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-56056?
Check whether you run Mamunur Rashid The Post Grid 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.

How to fix

  • Fixed in: 7.9.8

Technical details

The Post Grid plugin through version 7.9.7 fails to properly neutralize user input during web page generation, allowing stored XSS. The vulnerability requires contributor or developer privilege and user interaction (such as visiting a crafted page or clicking a link) to exploit. A successful attack can inject persistent malicious scripts that execute in visitors' browsers.

Affected products

  • Mamunur Rashid The Post Grid through 7.9.7

Timeline

  • 2026-10-29: disclosed
  • 2026-10-29: patched

References

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