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1 vulnerability found for SAML Single Sign On by Unknown
CVE-2026-19842 (GCVE-0-2026-19842)
Vulnerability from cvelistv5
Published
2026-08-19 06:00
Modified
2026-08-19 16:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
The SAML Single Sign On WordPress plugin before 5.4.7 does not verify the signature of a SAML response before storing the certificate it carries, and offers an administrator a one-click control that promotes that stored certificate to the site's trusted signing certificate, allowing unauthenticated attackers to have a certificate of their own trusted and then authenticate as any user, including an administrator.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Unknown | SAML Single Sign On |
Version: 4.8.85 ≤ |
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"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
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"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
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"timestamp": "2026-08-19T15:58:48.073205Z",
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
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"title": "CISA ADP Vulnrichment"
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"product": "SAML Single Sign On",
"vendor": "Unknown",
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],
"source": {
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"title": "SAML Single Sign On 4.8.85 - 5.4.6 - Unauthenticated Administrator Account Takeover via SAML Trust Anchor Overwrite",
"x_generator": {
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