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Fencer Vulns
medium 5.4

CVE-2021-28901 json

Multiple cross-site scripting (XSS) vulnerabilities exist in SITA Software Azur CMS 1.2.3.1 and earlier, which allows remote attackers to i…

published 2021-09-15 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-15554

cvss
5.4
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits
0
none known

Summary

Multiple cross-site scripting (XSS) vulnerabilities exist in SITA Software Azur CMS 1.2.3.1 and earlier, which allows remote attackers to inject arbitrary web script or HTML via the (1) NOM_CLI , (2) ADRESSE , (3) ADRESSE2, (4) LOCALITE parameters to /eshop/products/json/aouCustomerAdresse; and the (5) nom_liste parameter to /eshop/products/json/addCustomerFavorite.

Exploit prediction

0.70% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/post-cyberlabs/CVE-Advisory/blob/main/CVE_2021_28901.pdf referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
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

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.