{"affected":[{"defaultStatus":"unaffected","product":"Widget Options – Advanced Conditional Visibility for Gutenberg Blocks & Classic Widgets","source":"CNA: Wordfence","vendor":"marketingfire","versions":[{"lessThanOrEqual":"4.2.6.1","status":"affected","version":"0","versionType":"semver"}]}],"cveId":"CVE-2026-116615","cwes":["CWE-94"],"description":"The Widget Options – Advanced Conditional Visibility for Gutenberg Blocks & Classic Widgets plugin for WordPress is vulnerable to Code Injection in all versions up to, and including, 4.2.6.1 via the `post_content` parameter. This is due to asymmetric parsing between the save-time strip filter (`widgetopts_strip_logic_from_blocks()`) and the render-time parser (`blockopts_filter_before_display()`): embedding an inner `<!--start_widgetopts` literal inside a JSON key causes the write-side `json_decode` to see a non-`class` key and skip stripping — persisting the payload verbatim to the database — while the render-side `str_replace` reconstitutes the key to `class`, feeding the attacker-controlled `logic` value directly into `@eval`. This makes it possible for authenticated attackers, with Author-level access and above, to inject PHP expressions that execute on every front-end page view, enabling boolean-oracle exfiltration of WordPress site configuration data — including admin email address, default role, and arbitrary `get_option`, `get_user_meta`, and `get_post_meta` values — via the plugin's allowlisted-function sandbox, which escalates to unrestricted code execution if any installed plugin extends the `widgetopts_allowed_php_functions` filter. Contributors can also exploit this vulnerability when their submitted post is later published by an administrator; notably, the injected payload executes for all site visitors, including unauthenticated users, because a trust-flag mechanism introduced in version 4.2.6 causes `widgetopts_safe_eval_trusted()` to bypass its non-admin short-circuit at every legacy render callsite. Exploitation by attackers with contributor-level access and above requires that an administrator (or editor) later publishes the contributor's submission. On a default installation, where that is not configured, the vulnerability requires attackers with author-level access and above.","epss":{"date":"2026-11-13","percentile":0.62373,"score":0.00968},"exploits":[],"kev":null,"metrics":[{"score":8.8,"severity":"high","source":"CNA: Wordfence","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},{"score":8.8,"severity":"high","source":"NVD: security@wordfence.com","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1794598117970,"publishedAt":1794562512566,"references":[{"source":"CNA: Wordfence","tags":[],"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/3f5e4431-2789-47c8-81ce-e9f67454accc?source=cve"},{"source":"CNA: Wordfence","tags":[],"url":"https://plugins.trac.wordpress.org/browser/widget-options/tags/4.2.6.1/includes/widgets/gutenberg/gutenberg-toolbar.php#L496"},{"source":"CNA: Wordfence","tags":[],"url":"https://plugins.trac.wordpress.org/browser/widget-options/tags/4.2.6.1/includes/widgets/gutenberg/gutenberg-toolbar.php#L331"},{"source":"CNA: Wordfence","tags":[],"url":"https://plugins.trac.wordpress.org/browser/widget-options/tags/4.2.6.1/includes/widgets/gutenberg/gutenberg-toolbar.php#L377"},{"source":"CNA: Wordfence","tags":[],"url":"https://plugins.trac.wordpress.org/browser/widget-options/tags/4.2.6.1/includes/extras.php#L792"},{"source":"CNA: Wordfence","tags":[],"url":"https://plugins.trac.wordpress.org/browser/widget-options/tags/4.2.7/includes/widgets/gutenberg/gutenberg-toolbar.php"},{"source":"security@wordfence.com","tags":[],"url":"https://plugins.trac.wordpress.org/browser/widget-options/tags/4.2.6.1/includes/extras.php#L792"},{"source":"security@wordfence.com","tags":[],"url":"https://plugins.trac.wordpress.org/browser/widget-options/tags/4.2.6.1/includes/widgets/gutenberg/gutenberg-toolbar.php#L331"},{"source":"security@wordfence.com","tags":[],"url":"https://plugins.trac.wordpress.org/browser/widget-options/tags/4.2.6.1/includes/widgets/gutenberg/gutenberg-toolbar.php#L377"},{"source":"security@wordfence.com","tags":[],"url":"https://plugins.trac.wordpress.org/browser/widget-options/tags/4.2.6.1/includes/widgets/gutenberg/gutenberg-toolbar.php#L496"},{"source":"security@wordfence.com","tags":[],"url":"https://plugins.trac.wordpress.org/browser/widget-options/tags/4.2.7/includes/widgets/gutenberg/gutenberg-toolbar.php"},{"source":"security@wordfence.com","tags":[],"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/3f5e4431-2789-47c8-81ce-e9f67454accc?source=cve"}],"remediation":[],"revision":"3713e41e11e639c434041eafd4050fabdab7e9be5868456bd1ca00203f5e1377","sources":[{"modifiedAt":1794598117970,"name":"CNA: Wordfence","retrievedAt":1794600516893,"url":"https://www.cve.org/CVERecord?id=CVE-2026-116615"},{"modifiedAt":1794565046113,"name":"NVD","retrievedAt":1794572162345,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116615"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794600532992,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-116615"}],"ssvc":{"assessedAt":1794598108486,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"Widget Options <= 4.2.6.1 - Authenticated (Contributor+) Code Injection via 'post_content' Parameter","updatedAt":1794600532992}