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Fencer Vulns
medium 4.6

CVE-2020-7390 json

Sage X3 Syracuse Persistent XSS in Edit User page

published 2021-07-22 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-28516

cvss
4.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits
0
none known

Summary

Sage X3 Stored XSS Vulnerability on ‘Edit’ Page of User Profile. An authenticated user can pass XSS strings the "First Name," "Last Name," and "Email Address" fields of this web application component. Updates are available for on-premises versions of Version 12 (components shipped with Syracuse 12.10.0 and later) of Sage X3. Other on-premises versions of Sage X3 are unaffected or unsupported by the vendor.

Patch / fix

  • Sage X3 Syracuse 12.10.0

Exploit prediction

0.60% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • rapid7.com https://www.rapid7.com/blog/post/2021/07/07/cve-2020-7387-7390-multiple-sage-x3-vulnerabilities/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 4.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:P/A:N

Affected products

  • Sage X3

Classification

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

References

Sources

Fencer Vulns 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.