{"id":"CVE-2026-17011","state":"PUBLISHED","title":"Nexter Blocks < 5.0.2 - Contributor+ Stored CSS Injection","description":"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.","publishedAt":"2026-08-09T06:00:12.345Z","updatedAt":"2026-08-11T19:47:38.582Z","severity":{"score":3.8,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L","source":"CISA-ADP"},"assigner":"WPScan","products":["Unknown Nexter Blocks"],"affected":[{"vendor":"Unknown","product":"Nexter Blocks","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"5.0.2","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/a702e5cb-0fb3-419e-81df-fa5b26c81402/"],"weaknesses":["CWE-345"],"ingestedAt":"2026-10-29T20:11:00.674Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/17xxx/CVE-2026-17011.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-17011","state":"PUBLISHED","datePublished":"2026-08-09T06:00:12.345Z","dateUpdated":"2026-08-11T19:47:38.582Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-07-24T10:10:03.572Z"},"containers":{"cna":{"title":"Nexter Blocks < 5.0.2 - Contributor+ Stored CSS Injection","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Unknown","product":"Nexter Blocks","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"5.0.2","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/a702e5cb-0fb3-419e-81df-fa5b26c81402/","tags":["exploit","vdb-entry","technical-description"]}],"problemTypes":[{"descriptions":[{"description":"CWE-345 Insufficient Verification of Data Authenticity","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-08-09T06:00:12.345Z"},"credits":[{"lang":"en","value":"Vaibhav Narkhede","type":"finder"},{"lang":"en","value":"WPScan","type":"coordinator"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"WPScan CVE Generator"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":3.8,"attackVector":"NETWORK","baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L","integrityImpact":"LOW","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"LOW","privilegesRequired":"HIGH","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-08-11T19:45:35.346584Z","id":"CVE-2026-17011","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-345","type":"CWE","lang":"en","description":"CWE-345 Insufficient Verification of Data Authenticity"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-11T19:47:38.582Z"}}]}}}