Security readout for executives and security teams
Plain-English summary
CVE-2023-6828 affects the WordPress ARForms Form Builder plugin. An unauthenticated visitor can store malicious script through a referrer-related form parameter, causing script to run when another user views the affected page. This can expose user data or alter page behavior inside the site context.
Executive priority
Treat this as a near-term WordPress application risk. It is not listed as KEV in the supplied bundle, but unauthenticated stored XSS can affect visitors and administrators, so exposed sites should be inventoried and remediated promptly.
Technical view
The flaw is stored cross-site scripting in ARForms Form Builder through insufficient sanitization and output escaping of the arf_http_referrer_url parameter. Sources describe all versions up to and including 1.5.8 as affected. CVSS 3.1 is 7.2, with network access, low complexity, no privileges, and changed scope.
Likely exposure
Exposure is likely on WordPress sites using ARForms Form Builder version 1.5.8 or earlier, especially where public forms accept unauthenticated submissions. The provided source bundle does not identify non-WordPress products as affected.
Exploitation context
The CVE record and Wordfence source describe unauthenticated stored XSS. The bundle does not cite CISA KEV listing or confirmed active exploitation, so active exploitation should not be assumed from these sources alone.
Researcher notes
The affected parameter is arf_http_referrer_url. Evidence supports CWE-79 stored XSS caused by missing input sanitization and output escaping. The affected product naming is ARForms Form Builder for WordPress; the bundle does not provide exploit proof, exploitation telemetry, or detailed patch notes.
Mitigation direction
- Inventory WordPress sites for ARForms Form Builder and installed version.
- Update to a vendor-supported version newer than 1.5.8 after confirming vendor guidance.
- If update cannot be verified, consider disabling affected public forms temporarily.
- Review WordPress administrator accounts and sessions for suspicious activity.
- Monitor vendor, Wordfence, and WordPress plugin guidance for remediation details.
Validation and detection
- Confirm whether ARForms Form Builder is installed on each WordPress site.
- Record plugin versions and flag installations at 1.5.8 or earlier.
- Review public forms that process referrer or hidden tracking fields.
- Check web and WordPress logs for suspicious submissions around form endpoints.
- Verify stored form entries or rendered pages do not contain unexpected scripts.
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-2023-6828 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/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:L/PR:N/UI:N/S:C/C:L/I:L/A:N3.92.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:N/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/6e349cae-a996-4a32-807a-a98ebcb01edd?source=cveCVE reference
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3013347@arforms-form-builder/trunk&old=2998602@arforms-form-builder/trunk&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.