Cross-site scripting in norcross WP Hello Bar
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 WP Hello Bar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'digit_one' and 'digit_two' parameters in all versions up to, and including, 1.02 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.
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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-1042
- 2026-10-03 Alias added: GHSA-4hcf-mq88-ff2w
References
Other 6
- https://www.wordfence.com/threat-intel/vulnerabilities/id/73b55486-adb8-40c6-9113-c98618d9cb00?source=cve
- https://downloads.wordpress.org/plugin/wp-hello-bar.1.02.zip
- https://wordpress.org/plugins/wp-hello-bar/
- https://plugins.trac.wordpress.org/browser/wp-hello-bar/tags/1.02/wp-hello-bar.php#L214
- https://plugins.trac.wordpress.org/browser/wp-hello-bar/tags/1.02/wp-hello-bar.php#L222
- https://plugins.trac.wordpress.org/browser/wp-hello-bar/tags/1.02/wp-hello-bar.php#L152
Sources
- CVE-2026-1042 · CVE Program
- CVE-2026-1042 · NVD
- FIRST EPSS
- GHSA-4hcf-mq88-ff2w · 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