Advanced Custom Fields: Extended 0.8.9.4 — 0.9.2.7 - Authenticated (Contributor+) Stored Cross-Site Scripting
CVE-2026-94264Published · Updated Action summary
Advanced Custom Fields: Extended: Affected: 0.8.9.4 – 0.9.2.7Update to 0.9.2.8 or newer
Advanced Custom Fields: Extended PRO: Affected: 0.8.9.4 – 0.9.2.7Update to 0.9.2.8 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)
- 0.3% chance in 30 days23th percentile
- CISA KEV
- Not listed
On this page8
Am I affected?
Advanced Custom Fields: Extended acf-extended
- Affected0.8.9.4 – 0.9.2.7
- Patched in0.9.2.8
Update to 0.9.2.8 or newer.
You are affected if you run 0.8.9.4 – 0.9.2.7. Version 0.9.2.8 and later are not affected by this issue.
Advanced Custom Fields: Extended PRO acf-extended-pro
- Affected0.8.9.4 – 0.9.2.7
- Patched in0.9.2.8
Update to 0.9.2.8 or newer.
You are affected if you run 0.8.9.4 – 0.9.2.7. Version 0.9.2.8 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Advanced Custom Fields: Extended.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 0.9.2.8, or a newer patched version
- Update to version 0.9.2.8, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Advanced Custom Fields: Extended to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Karthik Ramakrishnan.
The Advanced Custom Fields: Extended plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions 0.8.9.4 to 0.9.2.7 due to insufficient input sanitization and output 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.
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 Advanced Custom Fields: Extended
All 20| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.5 | Unauthenticated Sensitive Information Exposure in 'acf[<mapped_field>]' Parameter via {get_user} Template Tag Injection ≤0.9.2.7Update to 0.9.2.8 | CVE-2026-110305 | |
| Medium5.3 | Missing Authorization to Unauthenticated Data Exposure via Multiple AJAX Endpoints ≤0.9.2.7Update to 0.9.2.8 | CVE-2026-2839 | |
| Medium4.8 | Missing Authorization to Unauthenticated Arbitrary Attachment Deletion via Email Action Dynamic File Field ≤0.9.2.6Update to 0.9.2.7 | CVE-2026-10752 | |
| Critical9.8 | Unauthenticated Privilege Escalation via Account Takeover 0.9.2.7 – 0.9.2.7Update to 0.9.2.8 | CVE-2026-94268 | |
| High7.3 | Unauthenticated Arbitrary Non-Admin Account Takeover 0.9.2.7 – 0.9.2.7Update to 0.9.2.8 | CVE-2026-94262 |
- High7.5Unauthenticated Sensitive Information Exposure in 'acf[<mapped_field>]' Parameter via {get_user} Template Tag Injection
≤0.9.2.7Update to 0.9.2.8
- Medium5.3Missing Authorization to Unauthenticated Data Exposure via Multiple AJAX Endpoints
≤0.9.2.7Update to 0.9.2.8
- Medium4.8Missing Authorization to Unauthenticated Arbitrary Attachment Deletion via Email Action Dynamic File Field
≤0.9.2.6Update to 0.9.2.7
- Critical9.8Unauthenticated Privilege Escalation via Account Takeover
0.9.2.7 – 0.9.2.7Update to 0.9.2.8
- High7.3Unauthenticated Arbitrary Non-Admin Account Takeover
0.9.2.7 – 0.9.2.7Update to 0.9.2.8
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. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. 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.
- EPSS
- Exploit Prediction Scoring System by FIRST.org.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.