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Fencer Vulns
medium 5.4

CVE-2021-41420 json

A stored XSS vulnerability in MaianAffiliate v.1.0 allows an authenticated attacker for arbitrary JavaScript code execution in the context…

published 2022-06-16 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-28447

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

A stored XSS vulnerability in MaianAffiliate v.1.0 allows an authenticated attacker for arbitrary JavaScript code execution in the context of authenticated and unauthenticated users through the MaianAffiliate admin panel.

Exploit prediction

0.79% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/mari0x00/MaianAffiliate-Code-execution-and-XSS/blob/main/README.md 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.