CVE-2026-18988— Easy Accordion <= 3.1.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'accordionTitleTag' Block Attribute
Possible ATT&CK Techniques 3AI
T1071 · Application Layer Protocol T1059 · Command and Scripting Interpreter T1189 · Drive-by CompromiseAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| shapedplugin | Easy Accordion – AI-Powered FAQ & Accordion Blocks, Product FAQ | ≤ 3.1.8 | affected |
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I. Basic Information for CVE-2026-18988
Vulnerability Information
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Vulnerability Title
Easy Accordion <= 3.1.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'accordionTitleTag' Block Attribute
Source: CVE Program / CVE List V5
Vulnerability Description
The Easy Accordion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'accordionTitleTag' block attribute in versions up to, and including, 3.1.8. This is due to insufficient input sanitization and output escaping in the accordion_header_renderer() function, which emits the attacker-supplied tag name using esc_attr() in an HTML tag-name context instead of tag_escape(). 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| shapedplugin | Easy Accordion – AI-Powered FAQ & Accordion Blocks, Product FAQ | 0 ~ 3.1.8 | - |
II. Public POCs for CVE-2026-18988
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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Patches & Fixes for CVE-2026-18988 (2)
News Coverage for CVE-2026-18988 (1)
Other References for CVE-2026-18988 (1)
IV. Related Vulnerabilities
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V. Comments for CVE-2026-18988
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