Ultimate FAQ Accordion Plugin <= 2.4.7 — Authenticated (Author+) Stored Cross-Site Scripting via FAQ Content
CVE-2026-4336Published · Updated Action summary
Affected: ≤2.4.7Update to 2.4.8 or newer
All remediation steps- Severity
- Medium6.4
- CVSS
- 6.4CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:CScope- Changed
C:LConfidentiality- Low
I:LIntegrity- Low
A:NAvailability- None
- Weakness
- CWE-79 Cross-Site Scripting
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Ultimate FAQ Accordion Plugin ultimate-faqs
- Affected≤ 2.4.7
- Patched in2.4.8
Update to 2.4.8 or newer.
You are affected if you run ≤ 2.4.7. Version 2.4.8 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Ultimate FAQ Accordion Plugin.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 2.4.8, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Ultimate FAQ Accordion Plugin to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Athiwat Tiprasaharn (Jitlada), Itthidej Aramsri (Boeing777).
The Ultimate FAQ Accordion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via FAQ content in all versions up to, and including, 2.4.7. This is due to the plugin calling html_entity_decode() on post_content during rendering in the set_display_variables() function (View.FAQ.class.php, line 746), which converts HTML entity-encoded payloads back into executable HTML, combined with insufficient output escaping in the faq-answer.php template where the decoded content is echoed without wp_kses_post() or any other sanitization. The ufaq custom post type is registered with 'show_in_rest' => true and defaults to 'post' capability_type, allowing Author-level users to create and publish FAQs via the REST API. An Author can submit entity-encoded malicious HTML (e.g., <img src=x onerror=alert()>) which bypasses WordPress's kses sanitization at save time (since kses sees entities as plain text, not tags), but is then decoded back into executable HTML by html_entity_decode() at render time. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in FAQ pages that will execute whenever a user accesses an injected FAQ, either directly or via the [ultimate-faqs] shortcode.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Ultimate FAQ Accordion Plugin
All 8| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting ≤2.4.14Update to 2.5.0 | CVE-2026-94391 | |
| Medium4.3 | Cross-Site Request Forgery ≤2.4.3Update to 2.4.4 | CVE-2025-67590 | |
| Medium5.7 | Missing Authorization to Arbitrary FAQ Creation <2.1.2Update to 2.1.2 | CVE-2021-24968 | |
| Medium6.1 | Reflected Cross-Site Scripting ≤1.8.29Update to 1.8.30 | CVE-2020-7107 | |
| Medium6.1 | Cross-Site Scripting <1.8.25Update to 1.8.25 | CVE-2019-17233 |
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤2.4.14Update to 2.5.0
- Medium4.3Cross-Site Request Forgery
≤2.4.3Update to 2.4.4
- Medium5.7Missing Authorization to Arbitrary FAQ Creation
<2.1.2Update to 2.1.2
- Medium6.1Reflected Cross-Site Scripting
≤1.8.29Update to 1.8.30
- Medium6.1Cross-Site Scripting
<1.8.25Update to 1.8.25
Same weakness (Cross-Site Scripting)
All Cross-Site Scripting| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup
≤5.25.25Update to 5.26.45
- Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder
≤1.0.2Update to 1.1
- Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System
≤3.3.9Update to 3.4.0
- Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce
≤5.127.0Update to 5.128.0
Timeline
CVE published
Severity medium, CVSS 6.4
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.