Quick answers
- Is CVE-2026-120533 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-120533 being exploited in the wild.
- How severe is CVE-2026-120533?
- Medium severity, with a CVSS score of 6.4, published 5 November 2026.
- Which products and versions are affected?
- Redux Framework up to and including 4.5.16.
- Is there a fix for CVE-2026-120533?
- Yes: fixed in 4.5.18. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-120533 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-120533?
- Check whether you run Redux Framework 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: 4.5.18
Technical details
Stored cross-site scripting vulnerability in the theme_opts parameter due to insufficient input sanitization and output escaping. Authenticated attackers (subscriber-level and above) can inject arbitrary web scripts that persist and execute in pages. Exploitation requires the theme to have registered a Redux field of a CSS-emitting type (link_color, border, typography) with an output CSS selector; spinner, slider, color, and date field types have per-type validation that blocks entity-encoded payloads. Fixed in version 4.5.18.
Affected products
- Redux Framework Redux Framework up to and including 4.5.16
Timeline
- 2026-11-05: disclosed
- 2026-10-30: patched: Fixed in version 4.5.18 per GitHub PR #4124