CVE-2018-5387
Wizkunde SAMLBase SAML Bypass
Wizkunde SAMLBase may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Wizkunde SAMLBase may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.
- Record
CVE-2018-5387- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-287, CWE-347
- Updated
- 2026-11-02
CVE List No score
Wizkunde SAMLBase may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.
- Record
CVE-2018-5387- Weakness
- CWE-287
- Updated
- 2026-11-02
EUVDEUVD-2022-2997 No score
Wizkunde SAMLBase may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.
- Record
EUVD-2022-2997- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7gh2-8q93-87hp
Wizkunde SAMLBase SAML Bypass
Wizkunde SAMLBase may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.
- Record
GHSA-7gh2-8q93-87hp- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-347
- Updated
- 2026-11-02
OSVGHSA-7gh2-8q93-87hp
Wizkunde SAMLBase SAML Bypass
Wizkunde SAMLBase may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.
- Record
GHSA-7gh2-8q93-87hp- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-347
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
gogentooss/samlbasePackagist |
before 1.2.7 | 1.2.7 |
gogentooss/samlbasePackagist |
before 1.2.7, plus listed versions 0.71.0.01.0.11.0.21.1.0 Show 16 moreShow less1.1.11.1.21.1.31.1.41.1.51.1.61.1.71.1.81.1.91.2.01.2.11.2.21.2.31.2.41.2.51.2.6 |
1.2.7 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-5387 is a high vulnerability (CVSS 7.5) in Wizkunde Samlbase, published July 24, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.66%, the 76th percentile. Fixed in gogentooss/samlbase 1.2.7.
References
duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations
kb.cert.org/vuls/id/475445
github.com/GoGentoOSS/SAMLBase/issues/3
nvd.nist.gov/vuln/detail/CVE-2018-5387