WordPress theme
Weaver Xtreme <= 6.3.0 — Authenticated (Contributor+) Stored Cross-Site Scripting
CVE-2023-6990Published · Updated Action summary
Affected: ≤6.3.0Update to 6.4 or newer
All remediation stepsMedium5.4CVSS 3.15.4CISA KEVNot listedAccessLow-privilege account (e.g. subscriber)
On this page3
Overview
- Advisory ID
- CVE-2023-6990
- Product
- Weaver Xtreme weaver-xtreme
- Affected
- ≤6.3.0
- Fixed in
- 6.4
- Weakness
- CWE-79 Cross-Site Scripting
- Required access
- Low-privilege account (e.g. subscriber)
- Published
- · updated
- Credit
- Francesco Carlucci
- Source
- Wordfence Intelligence
- Affected≤ 6.3.0
- Patched in6.4
Update to 6.4 or newer.
5.4
CVSS 3.1 · CNA (Wordfence)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/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:RUser interaction- Required
S:CScope- Changed
C:LConfidentiality- Low
I:LIntegrity- Low
A:NAvailability- None
The Weaver Xtreme theme for WordPress is vulnerable to Stored Cross-Site Scripting via custom post meta in all versions up to, and including, 6.3.0 due to insufficient input sanitization and output escaping on user supplied meta (page-head-code). This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Not sure which version you run? Run a passive check — it reads public files only.
Remediation & mitigations
- Update to version 6.4, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
References & provenance
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
All 2 in Weaver XtremeTimeline
CVE published
Severity medium, CVSS 5.4
Record last updated
Sources & licenses
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.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.