GCVE-1988-2026-0158
Vulnerability from gna-1988 – Published: 2026-09-07 13:20 – Updated: 2026-09-09 10:07
VLAI
EPSS
VEX
Title
CVE-2026-15013 – miniOrange SAML SSO <= 5.4.3 Unauthenticated Authentication Bypass (PoC)
Summary
Hello Full Disclosure,
I'd like to share an independent lab Proof-of-Concept for CVE-2026-15013.
### CVE-2026-15013 – miniOrange SAML SSO <= 5.4.3 Unauthenticated
Authentication Bypass
SAML Signature Algorithm Confusion vulnerability. An unauthenticated
attacker can forge a valid SAMLResponse by forcing HMAC-SHA1 verification
against the IdP's public key, allowing full account takeover (including
administrators).
Root cause: Mo_SAML_Utilities::mo_saml_cast_key() trusts the
attacker-controlled SignatureMethod algorithm.
PoC (full chain to admin + optional webshell/reverse shell) + Docker lab:
https://github.com/zer0dayf/CVE-2026-15013
Patched in 5.4.4+
Original finder: lhking (Wordfence)
CVE record: https://www.cve.org/CVERecord?id=CVE-2026-15013
This repository is for educational and authorized testing purposes only.
Regards,
zer0dayf
https://github.com/zer0dayf
_______________________________________________
Sent through the Full Disclosure mailing list
https://nmap.org/mailman/listinfo/fulldisclosure
Web Archives & RSS: https://seclists.org/fulldisclosure/
Severity
No CVSS data available.
Assigner
References
7 references
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Cve | CVE-2026-15013 – miniOrange |
Affected:
unknown
|
guessed |
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}
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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