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Fencer Vulns
medium 6.1

CVE-2021-39412 json

Multiple Cross Site Scripting (XSS) vulnerabilities exists in PHPGurukul Shopping v3.1 via the (1) callback parameter in (a) server_side/sc…

published 2021-11-05 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-25771

cvss
6.1
version 3.1, NVD
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

Multiple Cross Site Scripting (XSS) vulnerabilities exists in PHPGurukul Shopping v3.1 via the (1) callback parameter in (a) server_side/scripts/id_jsonp.php, (b) server_side/scripts/jsonp.php, and (c) scripts/objects_jsonp.php, the (2) value parameter in examples_support/editable_ajax.php, and the (3) PHP_SELF parameter in captcha/index.php.

Exploit prediction

0.58% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/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.