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Fencer Vulns
high 8.8

CVE-2021-24728 json

Paid Member Subscriptions < 2.4.2 - Authenticated SQL Injection

published 2021-09-13 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11640

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

The Membership & Content Restriction – Paid Member Subscriptions WordPress plugin before 2.4.2 did not sanitise, validate or escape its order and orderby parameters before using them in SQL statement, leading to Authenticated SQL Injections in the Members and Payments pages.

Patch / fix

  • cozmoslabs membership_&_content_restriction_-_paid_member_subscriptions 2.4.2

Exploit prediction

1.71% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • trustwave.com https://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=29172 referenced PoC, tagged "exploit" by a source, unverified
  • wpscan.com https://wpscan.com/vulnerability/2277d335-1c90-4fa8-b0bf-25873c039c38 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

  • Unknown Membership & Content Restriction – Paid Member Subscriptions

Classification

Weakness
  • CWE-89 Improper Neutralization of Special Elements used in an SQL Command
Technology feeds

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.