CVE-2026-18409Disclosure

LOWCVSS 7.2 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

The WPForms Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Single Line Text and Paragraph Text Field Values in all versions up to, and including, 2.0.0.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The exploit relies on the plugin's own wp_kses_allowed_html filter widening the 'post' allowlist to permit iframe elements with a data-src attribute, which is not on WordPress's URI-attribute sanitization list, allowing a javascript: URI stored in data-src to survive kses processing and subsequently be promoted to a live src attribute by the bundled admin script view-entry.min.js.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-08-21: 2Technical Details · 2026-08-21: 208-21
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-18409 The WPForms Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Single Line Text and Paragraph Text Field Values in all versions up to, and incl… https://www.cve.org/CVERecord?id=CVE-2026-18409

    Post summary

    The snippet announces CVE‑2026‑18409, describing a stored XSS flaw in WPForms Pro plugin, with no PoC, exploit, or patch details given.

    00000753
    58.0K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-18409 Stored XSS in WPForms Pro Plugin via Text Fields Allows Unauthenticated Script Injection https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-18409

    Post summary

    The entry announces a stored XSS vulnerability (CVE‑2026‑18409) in WPForms Pro’s text fields that permits unauthenticated script injection.

    0000096
    4.1K followersView on X

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