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Fencer Intel
medium 6.5

CVE-2021-4372 json

WooCommerce Dynamic Pricing and Discounts <= 2.4.1 - Stored Cross-Site Scripting

published 3y ago modified 4mo ago also EUVD-2021-34199

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits
0
none known

Summary

The WooCommerce Dynamic Pricing and Discounts plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.4.1. This is due to missing sanitization on the settings imported via the import() function. This makes it possible for unauthenticated attackers to import a settings file containing malicious JavaScript that would execute when an administrator accesses the settings area of the site.

Patch / fix

  • RightPress WooCommerce Dynamic Pricing and Discounts 2.4.2

Is CVE-2021-4372 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.58% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • blog.nintechnet.com https://blog.nintechnet.com/woocommerce-dynamic-pricing-and-discounts-plugin-fixed-multiple-vulnerabilities/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

  • RightPress WooCommerce Dynamic Pricing and Discounts

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
Technology feeds

References

Sources

Fencer Intel 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.