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Fencer Intel
high 8.8

CVE-2021-24957 json

Advanced Page Visit Counter < 6.1.6 - Subscriber+ Blind SQL injection

published 4y ago modified 4mo ago also EUVD-2021-11869

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits
0
none known

Summary

The Advanced Page Visit Counter WordPress plugin before 6.1.6 does not escape the artID parameter before using it in a SQL statement in the apvc_reset_count_art AJAX action, available to any authenticated user, leading to a SQL injection

Patch / fix

  • advanced_page_visit_counter_project advanced_page_visit_counter 6.1.6

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Exploit prediction

1.35% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • wpscan.com https://wpscan.com/vulnerability/a282606f-6abf-4f75-99c9-dab0bea8cc96 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 Advanced Page Visit Counter – Advanced WordPress Visit Counter

Classification

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