Description
The Osiris Signature Banner plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 0.5. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to update settings and inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Severity (CVSS)
| Base score | 6.1 |
|---|---|
| Severity | Medium |
| Version | CVSS 3.1 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| Provided by | CNA |
Weaknesses
- CWE-352 — CWE-352 Cross-Site Request Forgery (CSRF)
Affected products
| Vendor | Product | Versions |
|---|---|---|
| osiris8 | Osiris Signature Banner | 0 to <=0.5 |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/03226722-000c-4bfe-a09b-e75882274845?source=cve
- https://plugins.trac.wordpress.org/browser/osiris-signature-banner/tags/0.5/osiris-signature-banner.php#L118
- https://plugins.trac.wordpress.org/browser/osiris-signature-banner/tags/0.5/osiris-signature-banner.php#L189
- https://plugins.trac.wordpress.org/browser/osiris-signature-banner/tags/0.5/osiris-signature-banner.php#L107
- https://plugins.trac.wordpress.org/browser/osiris-signature-banner/tags/0.5/osiris-signature-banner.php#L139
Generated from the official CVE List on 24 Jun 2026 09:35 UTC.