WPML <= 3.6.3 — Unauthenticated Stored Cross-Site Scripting
CVE-2018-18069Published · Updated Action summary
Affected: ≤3.6.3Update to 4.0 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)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
WPML Multilingual CMS sitepress-multilingual-cms
- Affected≤ 3.6.3
- Patched in4.0
Update to 4.0 or newer.
You are affected if you run ≤ 3.6.3. Version 4.0 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under WPML Multilingual CMS.
- 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 4.0, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch WPML Multilingual CMS to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence.
process_forms in the WPML (aka sitepress-multilingual-cms) plugin through 3.6.3 for WordPress has XSS via any locale_file_name_ parameter (such as locale_file_name_en) in an unauthenticated theme-localization.php request to wp-admin/admin.php.
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 WPML Multilingual CMS
All 17| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High8.1 | Unauthenticated Authentication Bypass in Language-per-Domain SSO via 'wpml_sso_token_domain' Parameter ≤4.9.7Update to 5.0.0 | CVE-2026-76877 | |
| Medium6.5 | Incorrect Authorization to Authenticated (Subscriber+) SQL Injection via ‘elementIds’ ≤4.9.5Update to 4.9.6 | CVE-2026-17509 | |
| Medium6.5 | Authenticated (Translator+) SQL Injection via 'sorting' Parameter ≤4.9.5Update to 4.9.6 | CVE-2026-12248 | |
| Medium6.4 | 4.7.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via wpml_language_switcher Shortcode 3.6.0 – 4.7.3Update to 4.7.4 | CVE-2025-3488 | |
| Critical9.9 | Authenticated (Contributor+) Remote Code Execution via Twig Server-Side Template Injection ≤4.6.12Update to 4.6.13 | CVE-2024-6386 |
- High8.1Unauthenticated Authentication Bypass in Language-per-Domain SSO via 'wpml_sso_token_domain' Parameter
≤4.9.7Update to 5.0.0
- Medium6.5Incorrect Authorization to Authenticated (Subscriber+) SQL Injection via ‘elementIds’
≤4.9.5Update to 4.9.6
- Medium6.5Authenticated (Translator+) SQL Injection via 'sorting' Parameter
≤4.9.5Update to 4.9.6
- Medium6.44.7.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via wpml_language_switcher Shortcode
3.6.0 – 4.7.3Update to 4.7.4
- Critical9.9Authenticated (Contributor+) Remote Code Execution via Twig Server-Side Template Injection
≤4.6.12Update to 4.6.13
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.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.