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Fencer Intel
medium 6.1

CVE-2021-25086 json

Advanced Page Visit Counter < 6.1.2 - Unauthenticated Stored Cross-Site Scripting

published 4y ago modified 4mo ago also EUVD-2021-11998

cvss
6.1
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 6.1.2 does not sanitise and escape some input before outputting it in an admin dashboard page, allowing unauthenticated attackers to perform Cross-Site Scripting attacks against admins viewing it

Patch / fix

  • advanced_page_visit_counter_project advanced_page_visit_counter 6.1.2

Is CVE-2021-25086 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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Exploit prediction

1.32% 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/2cf9e517-d882-4af2-bd12-e700b75e7a11 referenced PoC, tagged "exploit" by a source, unverified

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

Affected products

  • Unknown Advanced Page Visit Counter – Advanced WordPress Visit Counter

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.