Quick answers
- Is CVE-2026-19948 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-19948 being exploited in the wild.
- How severe is CVE-2026-19948?
- Medium severity, with a CVSS score of 5.3, published 1 September 2026.
- Which products and versions are affected?
- BracketSpace Cozy Blocks up to and including 2.2.17.
- Is there a fix for CVE-2026-19948?
- 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-2026-19948 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-19948?
- Check whether anything you run is named in the advisory. 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
This authorization bypass vulnerability exists in multiple block renderers within Cozy Blocks versions up to 2.2.17. The root cause is the unconditional emission of a valid sidebarNonce value into public page HTML without any login requirement, which allows unauthenticated attackers to harvest the nonce and use it to pass the only authentication check in the API handler. Attackers can then retrieve unauthorized metadata (name, price, short description, image URL, permalink, stock status, and product type) for WooCommerce products marked as draft, pending, private, or catalog-hidden. No user interaction is required; the nonce can be extracted passively from any public page. Patches should be available in versions after 2.2.17.
Affected products
- BracketSpace Cozy Blocks up to and including 2.2.17
Timeline
- 2026-09-01: disclosed