CM E-Mail Blacklist <= 1.6.2 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'black_email' Parameter
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The CM E-Mail Blacklist – Simple email filtering for safer registration plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'black_email' parameter in all versions up to, and including, 1.6.2. This is due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| CreativeMindsSolutions | CM E-Mail Blacklist – Simple email filtering for safer registration | up to 1.6.2 | — | No fix listed | CNA |
- CM E-Mail Blacklist – Simple email filtering for safer registration VendorCreativeMindsSolutions Affected up to 1.6.2 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-0691
- 2026-10-03 Alias added: GHSA-h4hg-xmrj-3c6w
References
Other 4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/821f4ea9-bc25-4d65-9058-5b77c4f1b230?source=cve
- https://plugins.trac.wordpress.org/browser/cm-email-blacklist/trunk/backend/views/settings/email_blacklist.phtml#L67
- https://plugins.trac.wordpress.org/browser/cm-email-blacklist/tags/1.6.2/backend/views/settings/email_blacklist.phtml#L67
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3440158%40cm-email-blacklist&new=3440158%40cm-email-blacklist&sfp_email=&sfph_mail=
More CreativeMindsSolutions vulnerabilities
- TI-2024-01828 CM Download and File Manager < 2.9.1 - Download Edit via CSRF CVSS 3.1HIGH 8.8
- TI-2024-04797 Cross-site request forgery in CM Email Registration Blacklist and Whitelist CVSS 3.1HIGH 8.1
- TI-2022-02838 CM Download Manager < 2.8.6 - Admin+ Arbitrary File Upload CVSS 3.1HIGH 7.2
- TI-2024-01145 CM Download and File Manager < 2.9.0 - Download Unpublish via CSRF CVSS 3.1MEDIUM 6.8
- TI-2024-04669 CM WordPress Search And Replace Plugin < 1.3.9 - Plugin Reset via CSRF CVSS 3.1MEDIUM 6.5
- TI-2024-04647 CM Popup Plugin for WordPress < 1.6.6 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
Sources
- CVE-2026-0691 · CVE Program
- CVE-2026-0691 · NVD
- FIRST EPSS
- GHSA-h4hg-xmrj-3c6w · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences