CVE-2026-17011Nexter Blocks < 5.0.2 - Contributor+ Stored CSS Injection
Updated under an hour ago ()
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It affects Unknown Nexter Blocks. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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The Nexter Blocks WordPress plugin before 5.0.2 does not restrict who can save global CSS through one of its REST endpoints, allowing users with at least the Contributor role to store arbitrary CSS that is rendered site-wide on the front end, enabling defacement, content hiding, and UI redressing.
- CVSS
- 3.8 LOW (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L
- Weakness (CWE)
- CWE-345
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- WPScan
- NVD analysis
- Deferred
- Record last updated
- Aug 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Unknown Nexter Blocks unknown:nexter_blocks (from the name) | before 5.0.2 | CNA record |
References
- https://wpscan.com/vulnerability/a702e5cb-0fb3-419e-81df-fa5b26c81402/exploit, vdb-entry, technical-description
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.