Security readout for executives and security teams
Plain-English summary
CVE-2023-6498 is a stored cross-site scripting issue in the Complianz WordPress cookie-consent plugin. It requires an authenticated administrator-level attacker, so it is not a typical external drive-by risk. The concern is malicious script persistence if an admin account is compromised or misused on affected configurations.
Executive priority
Treat this as a moderate, hygiene-driven remediation item. It is unlikely to be a top emergency without admin compromise indicators, but affected public WordPress sites should be updated and administrator access reviewed promptly.
Technical view
Complianz GDPR/CCPA Cookie Consent versions up to and including 6.5.5 insufficiently sanitize admin settings and escape output. This can allow stored XSS that executes when an injected page is accessed. The source states this only affects multisite installations and installations where unfiltered_html is disabled. CVSS 3.1 score is 4.4.
Likely exposure
Exposure is limited to WordPress sites running Complianz GDPR/CCPA Cookie Consent through 6.5.5, especially multisite deployments or sites where unfiltered_html is disabled. Sites without the plugin, newer plugin versions, or without the stated configuration constraints are less likely to be exposed.
Exploitation context
The source bundle does not report active exploitation, and KEV status is false. Exploitation requires administrator-level authentication and high attack complexity, which reduces broad internet-scale risk. It remains relevant where admin accounts are shared, weakly protected, or already compromised.
Researcher notes
The evidence supports authenticated administrator-plus stored XSS via plugin settings, constrained to multisite or disabled unfiltered_html contexts. The bundle does not provide exploit activity, broad impact evidence, or detailed remediation text beyond the affected version boundary and upstream changeset reference.
Mitigation direction
- Check vendor and Wordfence guidance for the fixed Complianz release.
- Update Complianz beyond affected versions after change-control testing.
- Restrict WordPress administrator access to trusted, MFA-protected accounts.
- Review Complianz settings for unexpected script content.
- Audit recent administrator activity on affected WordPress sites.
Validation and detection
- Inventory WordPress sites using the Complianz cookie-consent plugin.
- Identify installations running Complianz version 6.5.5 or earlier.
- Confirm whether the site is multisite or has unfiltered_html disabled.
- Review pages rendering Complianz settings for unauthorized script behavior.
- Check WordPress admin logs for suspicious setting changes.
Public sources used
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-2023-6498 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
- 4.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/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:H/PR:H/UI:N/S:C/C:L/I:L/A:N1.32.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.4MediumVector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/01c1458d-3e38-4dbf-bb65-80465ea6d0ad?source=cveCVE reference
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3009228%40complianz-gdpr&new=3009228%40complianz-gdpr&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.