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Fencer Vulns
medium 5.4

CVE-2018-9283 json

An XSS issue was discovered in CremeCRM 1.6.12.

published 2018-09-07 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-20877

cvss
5.4
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

An XSS issue was discovered in CremeCRM 1.6.12. It is affected by 10 stored Cross-Site Scripting (XSS) vulnerabilities in the firstname, lastname, billing_address-address, billing_address-zipcode, billing_address-city, billing_address-department, shipping_address-address, shipping_address-zipcode, shipping_address-city, and shipping_address-department parameters in the contact creation and modification page. The payload is stored within the application database and allows the execution of JavaScript code each time a client visit an infected page.

Exploit prediction

0.78% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • bishopfox.com https://www.bishopfox.com/news/2018/08/cremecrm-1-6-12-multiple-vulnerabilities/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 5.4 CVSS:3.0/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

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.