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{"cveTags": [], "descriptions": [{"lang": "en", "value": "The Bg Book Publisher plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `book_author` post meta, rendered through the `[book_author]` shortcode, in all versions up to, and including, 1.25. This is due to the plugin not properly escaping the meta value before output. 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."}], "id": "CVE-2025-11867", "lastModified": "2026-04-15T00:35:42.020", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 2.7, "source": "security@wordfence.com", "type": "Secondary"}]}, "published": "2025-10-22T09:15:35.103", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/bg-book-publisher/tags/1.25/bg_bpub.php#L121"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/af181085-0a6b-4e87-b250-1fb4574d808d?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-21T18:47:50.086104+00:00", "value": {"mitigation_remediation": ["Update the Bg Book Publisher plugin to a version newer than 1.25 where the book_author metadata is properly escaped.", "If an upgrade cannot be performed immediately, limit contributor\u2011level permissions to trusted users to prevent further injections.", "Disable or temporarily remove the [book_author] shortcode from posts or pages that display the author field until the vulnerability is fixed."], "summary": {"action": "Patch Update", "impact": "Stored Cross\u2011Site Scripting"}, "threat_synthesis": {"affected_systems": "All installations of the Bg Book Publisher plugin by vbog, in WordPress, with versions up to and including 1.25. No specific product variants are listed beyond the plugin.", "description_and_impact": "The vulnerability resides in the Bg Book Publisher plugin for WordPress, where the book_author post meta is rendered through the [book_author] shortcode without proper escaping. This allows an authenticated user with contributor or higher privileges to inject arbitrary JavaScript into the meta value. When a web page containing the shortcode is viewed, the injected script runs in the victim\u2019s browser, providing the attacker with the ability to interfere with client\u2011side operations.", "risk_and_exploitability": "The CVSS score of 6.4 indicates a medium severity. The EPSS score is below 1%, indicating a very low probability of exploitation. The vulnerability is not listed in CISA's KEV catalog. An attacker must have authenticated contributor\u2011level access to insert malicious content into the book_author field. Once stored, the script executes in the browsers of users who view a page containing the [book_author] shortcode."}}}}, "created": "2025-10-23T10:08:00.773754+00:00", "updated": "2026-04-21T19:00:36.130817+00:00", "vendors": ["wordpress", "wordpress$PRODUCT$wordpress"]}