{"id":"CVE-2026-3998","state":"PUBLISHED","title":"WM JqMath <= 1.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'style' Shortcode Attribute","description":"The WM JqMath plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'style' shortcode attribute of the [jqmath] shortcode in all versions up to and including 1.3. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. The generate_jqMathFormula() function directly concatenates the 'style' attribute value into an HTML style attribute without applying esc_attr() or any other 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.","publishedAt":"2026-04-15T08:28:16.854Z","updatedAt":"2026-04-15T18:08:29.456Z","severity":{"score":6.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","source":"Wordfence"},"assigner":"Wordfence","products":["webmindpt WM JqMath"],"affected":[{"vendor":"webmindpt","product":"WM JqMath","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.3","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/b4aebb45-b47b-4b5a-8281-400a4b786689?source=cve","https://plugins.trac.wordpress.org/browser/wm-jqmath/trunk/wm_jqmath.php#L33","https://plugins.trac.wordpress.org/browser/wm-jqmath/tags/1.3/wm_jqmath.php#L33","https://plugins.trac.wordpress.org/browser/wm-jqmath/trunk/wm_jqmath.php#L27","https://plugins.trac.wordpress.org/browser/wm-jqmath/tags/1.3/wm_jqmath.php#L27"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:50.837Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/3xxx/CVE-2026-3998.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3998","state":"PUBLISHED","datePublished":"2026-04-15T08:28:16.854Z","dateUpdated":"2026-04-15T18:08:29.456Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-03-11T17:08:45.978Z"},"containers":{"cna":{"title":"WM JqMath <= 1.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'style' Shortcode Attribute","descriptions":[{"lang":"en","value":"The WM JqMath plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'style' shortcode attribute of the [jqmath] shortcode in all versions up to and including 1.3. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. The generate_jqMathFormula() function directly concatenates the 'style' attribute value into an HTML style attribute without applying esc_attr() or any other 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."}],"affected":[{"vendor":"webmindpt","product":"WM JqMath","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.3","versionType":"semver"}]}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/b4aebb45-b47b-4b5a-8281-400a4b786689?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/wm-jqmath/trunk/wm_jqmath.php#L33"},{"url":"https://plugins.trac.wordpress.org/browser/wm-jqmath/tags/1.3/wm_jqmath.php#L33"},{"url":"https://plugins.trac.wordpress.org/browser/wm-jqmath/trunk/wm_jqmath.php#L27"},{"url":"https://plugins.trac.wordpress.org/browser/wm-jqmath/tags/1.3/wm_jqmath.php#L27"}],"metrics":[{"cvssV3_1":{"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-04-15T08:28:16.854Z"},"credits":[{"lang":"en","type":"finder","value":"Gilang Asra Bilhadi"}],"timeline":[{"time":"2026-04-14T19:46:51.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-15T18:08:23.365926Z","id":"CVE-2026-3998","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-15T18:08:29.456Z"}}]}}}