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Fencer Vulns
medium 5.4

CVE-2021-25647 json

Mobile application "Testes de Codigo" v11.3 and prior allows stored XSS by injecting a payload in the "feedback" message field causing it t…

published 2021-01-28 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-12539

cvss
5.4
version 3.1, 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

Mobile application "Testes de Codigo" v11.3 and prior allows stored XSS by injecting a payload in the "feedback" message field causing it to be stored in the remote database and leading to its execution on client devices when loading the "feedback list", either by accessing the website directly or using the mobile application.

Exploit prediction

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

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.