Ultimate Member <= 2.13.1 — Unauthenticated Stored Cross-Site Scripting via 'form_id' Parameter
CVE-2026-96270Published · Updated Action summary
Affected: ≤2.13.1Update to 2.14.0 or newer
All remediation steps- Severity
- High7.2
- CVSS
- 7.2CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:CScope- Changed
C:LConfidentiality- Low
I:LIntegrity- Low
A:NAvailability- None
- Weakness
- CWE-79 Cross-Site Scripting
- Required access
- No account needed
- Exploit prediction (EPSS)
- 0.2% chance in 30 days16th percentile
- CISA KEV
- Not listed
On this page8
Am I affected?
Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin ultimate-member
- Affected≤ 2.13.1
- Patched in2.14.0
Update to 2.14.0 or newer.
You are affected if you run ≤ 2.13.1. Version 2.14.0 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 Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 2.14.0, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to thevietronin.
The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'form_id' parameter in all versions up to, and including, 2.13.1 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 injected payload is stored in the registering user's 'submitted' usermeta via update_user_meta() and is only triggered when an administrator opens the affected user record in the wp-admin Users modal, which inserts the unescaped output via jQuery .html().
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 Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin
All 87| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.4 | Authenticated (Subscriber+) Stored Cross-Site Scripting via Custom Textarea Profile Field ≤2.14.1Update to 2.14.2 | CVE-2026-116621 | |
| Medium6.4 | Authenticated (Subscriber+) Stored Cross-Site Scripting via 'user_url' Profile Field ≤2.14.0Update to 2.14.1 | CVE-2026-107625 | |
| High8.1 | Unauthenticated PHP Object Injection ≤2.13.1Update to 2.14.0 | CVE-2026-115968 | |
| High7.5 | Missing Authorization to Unauthenticated Sensitive Profile Field Disclosure via Member Directory Field Privacy Bypass ≤2.13.1Update to 2.14.0 | CVE-2026-93428 | |
| High7.3 | Unauthenticated Privilege Escalation ≤2.13.1Update to 2.14.0 | CVE-2026-96539 |
- Medium6.4Authenticated (Subscriber+) Stored Cross-Site Scripting via Custom Textarea Profile Field
≤2.14.1Update to 2.14.2
- Medium6.4Authenticated (Subscriber+) Stored Cross-Site Scripting via 'user_url' Profile Field
≤2.14.0Update to 2.14.1
- High8.1Unauthenticated PHP Object Injection
≤2.13.1Update to 2.14.0
- High7.5Missing Authorization to Unauthenticated Sensitive Profile Field Disclosure via Member Directory Field Privacy Bypass
≤2.13.1Update to 2.14.0
- High7.3Unauthenticated Privilege Escalation
≤2.13.1Update to 2.14.0
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 high, CVSS 7.2
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.
- EPSS
- Exploit Prediction Scoring System by FIRST.org.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.