CVE Explorer
CVE-2026-8905
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.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"Osiris Signature Banner","vendor":"osiris8","versions":[{"lessThanOrEqual":"0.5","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:26bb010aec1ef8d084edc9270a258a4f878d81025ec07b81fd01614225e69768 · sha256:4f09ec256ce32b93… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":6.1,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:26bb010aec1ef8d084edc9270a258a4f878d81025ec07b81fd01614225e69768 · sha256:4f09ec256ce32b93… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-352","description":"CWE-352 Cross-Site Request Forgery (CSRF)","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:26bb010aec1ef8d084edc9270a258a4f878d81025ec07b81fd01614225e69768 · sha256:4f09ec256ce32b93… · /containers/cna/problemTypes/0/descriptions/0
Source references
5 source assertions{"url":"https://plugins.trac.wordpress.org/browser/osiris-signature-banner/tags/0.5/osiris-signature-banner.php#L107"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:26bb010aec1ef8d084edc9270a258a4f878d81025ec07b81fd01614225e69768 · sha256:4f09ec256ce32b93… · /containers/cna/references/3
{"url":"https://plugins.trac.wordpress.org/browser/osiris-signature-banner/tags/0.5/osiris-signature-banner.php#L118"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:26bb010aec1ef8d084edc9270a258a4f878d81025ec07b81fd01614225e69768 · sha256:4f09ec256ce32b93… · /containers/cna/references/1
{"url":"https://plugins.trac.wordpress.org/browser/osiris-signature-banner/tags/0.5/osiris-signature-banner.php#L139"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:26bb010aec1ef8d084edc9270a258a4f878d81025ec07b81fd01614225e69768 · sha256:4f09ec256ce32b93… · /containers/cna/references/4
{"url":"https://plugins.trac.wordpress.org/browser/osiris-signature-banner/tags/0.5/osiris-signature-banner.php#L189"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:26bb010aec1ef8d084edc9270a258a4f878d81025ec07b81fd01614225e69768 · sha256:4f09ec256ce32b93… · /containers/cna/references/2
{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/03226722-000c-4bfe-a09b-e75882274845?source=cve"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:26bb010aec1ef8d084edc9270a258a4f878d81025ec07b81fd01614225e69768 · sha256:4f09ec256ce32b93… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.