Security readout for executives and security teams
Plain-English summary
A WordPress site using Weaver Xtreme up to version 6.3.0 could let a logged-in contributor place script content into page metadata. That script may run when someone views the affected page, creating risk to site users and administrators.
Executive priority
Treat this as a targeted medium-priority web risk. It is not reported as actively exploited here, but compromised contributor accounts could turn the issue into user or administrator browser compromise.
Technical view
CVE-2023-6990 is a stored cross-site scripting issue in Weaver Xtreme for WordPress. The reported sink is custom post meta named page-head-code, caused by insufficient input sanitization and output escaping. It requires authenticated contributor-level access or higher and is tracked as CWE-79 with CVSS 3.1 score 5.4.
Likely exposure
Exposure is most likely on WordPress sites running Weaver Xtreme version 6.3.0 or earlier, especially where contributor accounts exist or could be compromised.
Exploitation context
The bundle does not show CISA KEV listing or other evidence of active exploitation. The attack requires authenticated contributor-level privileges and user interaction through viewing an injected page.
Researcher notes
Evidence identifies the vulnerable field and version ceiling, but the bundle does not name a specific fixed version. Validate remediation against the WordPress theme changeset and current vendor guidance before closing exposure.
Mitigation direction
- Inventory WordPress sites using the Weaver Xtreme theme.
- Check vendor or WordPress theme guidance for the fixed release before updating.
- Update Weaver Xtreme where a vendor-confirmed fixed version is available.
- Restrict contributor-level access to trusted users only.
- Review and remove unnecessary contributor or higher accounts.
Validation and detection
- Confirm each site’s active theme and Weaver Xtreme version.
- Review contributor-level and higher accounts for business need.
- Inspect affected page metadata for unauthorized script-like content.
- Verify updated sites no longer allow unsafe page-head-code rendering.
- Document any site still running version 6.3.0 or earlier.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-6990 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N2.32.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/bc7384d7-c2fd-4d63-9b80-bb5bde9a23d5?source=cveCVE reference
- https://themes.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=212828%40weaver-xtreme&new=212828%40weaver-xtreme&sfp_email=&sfph_mail=CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.