WordPress plugin
Osiris Signature Banner security & vulnerabilities
Unpatched vulnerability in the latest version
At least one vulnerability affects the latest version and no fix has been released. Deactivate the plugin or restrict access to the affected feature until the vendor ships a patch.
- Critical0
- High0
- Medium1
- Low0
All Osiris Signature Banner vulnerabilities
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Osiris Signature Banner: common questions
Does Osiris Signature Banner have known vulnerabilities?
Yes. VulnCrest Radar lists 1 known vulnerability in Osiris Signature Banner: 1 medium. At least one is not fixed in the latest version.
How do I check which version of Osiris Signature Banner I run?
In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.
What is the most recent Osiris Signature Banner vulnerability?
CVE-2026-8905, published Jun 23, 2026: Osiris Signature Banner <= 0.5 - Cross-Site Request Forgery to Stored Cross-Site Scripting via 'prepend_text' Parameter. Severity: Medium (CVSS 6.1).
Is any Osiris Signature Banner vulnerability listed in CISA KEV?
No. None of the known Osiris Signature Banner vulnerabilities is currently listed in the CISA KEV catalog.