GCVE-1988-2026-0305
Vulnerability from gna-1988 – Published: 2026-09-08 11:40 – 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
_______________________________________________
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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 |
Relationships
reference
GCVE-1988-2026-0305 (this record)
- related CVE-2026-15013
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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