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Fencer Intel
medium 6.1

CVE-2020-6850 json

Utilities.php in the miniorange-saml-20-single-sign-on plugin before 4.8.84 for WordPress allows XSS via a crafted SAML XML Response to wp-…

published 6y ago modified 4mo ago also EUVD-2020-27993

cvss
6.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits
0
none known

Summary

Utilities.php in the miniorange-saml-20-single-sign-on plugin before 4.8.84 for WordPress allows XSS via a crafted SAML XML Response to wp-login.php. This is related to the SAMLResponse and RelayState variables, and the Destination parameter of the samlp:Response XML element.

Patch / fix

  • miniorange saml_sp_single_sign_on 4.8.84

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Exploit prediction

1.38% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • zeroauth.ltd https://zeroauth.ltd/blog/ referenced PoC, tagged "exploit" by a source, unverified
  • zeroauth.ltd https://zeroauth.ltd/blog/2020/01/28/cve-2020-6850-miniorange-saml-wp-plugin-before-4-8-84-is-vulnerable-to-xss-via-a-specially-crafted-saml-xml-response/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.