CVE-2026-112313: ACF Extended stored cross-site scripting vulnerability

CVE-2026-112313 · Severity: high · CVSS 7.1 · Published 2026-10-22

ACF Extended is a WordPress plugin that extends the Advanced Custom Fields functionality for website builders. A stored cross-site scripting (XSS) vulnerability in this plugin allows attackers to inject malicious scripts into web pages that affect all visitors to a site. If exploited, attackers could steal visitor data, hijack user accounts, or redirect users to malicious sites.

Technologies: ACF Extended. Vendors: ACF Extended.

Quick answers

Is CVE-2026-112313 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-112313 being exploited in the wild.
How severe is CVE-2026-112313?
High severity, with a CVSS score of 7.1, published 22 October 2026.
Which products and versions are affected?
ACF Extended through 0.9.2.7.
Is there a fix for CVE-2026-112313?
Yes: fixed in 0.9.2.8. Until then: Update the ACF Extended plugin to version 0.9.2.8 or later immediately. If unable to update immediately, Patchstack reports a mitigation rule is available to block attacks until the plugin can be patched. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-112313 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-112313?
Check whether you run ACF Extended 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: 0.9.2.8

Update the ACF Extended plugin to version 0.9.2.8 or later immediately. If unable to update immediately, Patchstack reports a mitigation rule is available to block attacks until the plugin can be patched.

Technical details

This is a stored XSS vulnerability in ACF Extended versions up to 0.9.2.7 resulting from improper neutralization of user-supplied input during web page generation. The vulnerability requires user interaction (a privileged user clicking a malicious link or visiting a crafted page), but once stored on the site, the malicious script executes for all visitors. The vulnerability is fixed in version 0.9.2.8 and later.

Affected products

  • ACF Extended ACF Extended through 0.9.2.7

Timeline

  • 2026-10-22: disclosed: Vulnerability published on NVD
  • 2026-10-20: patched: Patched version 0.9.2.8 released
  • 2026-08-19: other: Reported by Asim Alshaya

References

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