CVE Explorer
CVE-2026-3475
The Instant Popup Builder plugin for WordPress is vulnerable to Unauthenticated Arbitrary Shortcode Execution in all versions up to and including 1.1.7. This is due to the handle_email_verification_page() function constructing a shortcode string from user-supplied GET parameters (token, email) and passing it to do_shortcode() without properly sanitizing square bracket characters, combined with missing authorization checks on the init hook. While sanitize_text_field() and esc_attr() are applied,
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"Instant Popup Builder – Powerful Popup Maker for Opt-ins, Email Newsletters & Lead Generation","vendor":"instantpopupbuilder","versions":[{"lessThanOrEqual":"1.1.7","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:8be22c734cb0ac739c30822f24421cef34328cf853dd4e143567a49f40d858f3 · sha256:1c4c13b1ba33fef7… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:8be22c734cb0ac739c30822f24421cef34328cf853dd4e143567a49f40d858f3 · sha256:1c4c13b1ba33fef7… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-862","description":"CWE-862 Missing Authorization","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:8be22c734cb0ac739c30822f24421cef34328cf853dd4e143567a49f40d858f3 · sha256:1c4c13b1ba33fef7… · /containers/cna/problemTypes/0/descriptions/0
Source references
6 source assertions{"url":"https://plugins.trac.wordpress.org/browser/instant-popup-builder/tags/1.1.6/public/class-instant-popup-subscription-public.php#L1761"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:8be22c734cb0ac739c30822f24421cef34328cf853dd4e143567a49f40d858f3 · sha256:1c4c13b1ba33fef7… · /containers/cna/references/4
{"url":"https://plugins.trac.wordpress.org/browser/instant-popup-builder/tags/1.1.6/public/class-instant-popup-subscription-public.php#L1772"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:8be22c734cb0ac739c30822f24421cef34328cf853dd4e143567a49f40d858f3 · sha256:1c4c13b1ba33fef7… · /containers/cna/references/2
{"url":"https://plugins.trac.wordpress.org/browser/instant-popup-builder/trunk/public/class-instant-popup-subscription-public.php#L1761"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:8be22c734cb0ac739c30822f24421cef34328cf853dd4e143567a49f40d858f3 · sha256:1c4c13b1ba33fef7… · /containers/cna/references/3
{"url":"https://plugins.trac.wordpress.org/browser/instant-popup-builder/trunk/public/class-instant-popup-subscription-public.php#L1772"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:8be22c734cb0ac739c30822f24421cef34328cf853dd4e143567a49f40d858f3 · sha256:1c4c13b1ba33fef7… · /containers/cna/references/1
{"url":"https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3477334%40instant-popup-builder&new=3477334%40instant-popup-builder&sfp_email=&sfph_mail="}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:8be22c734cb0ac739c30822f24421cef34328cf853dd4e143567a49f40d858f3 · sha256:1c4c13b1ba33fef7… · /containers/cna/references/5
{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/979962e3-9052-4dc9-94d0-3ec8de3d5460?source=cve"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:8be22c734cb0ac739c30822f24421cef34328cf853dd4e143567a49f40d858f3 · sha256:1c4c13b1ba33fef7… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.