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Fencer Vulns
critical 9.8

CVE-2021-4380 json

Pinterest Automatic <= 4.14.3 - Unuathenticated Arbitrary Options Update

published 2023-06-07 3 y ago modified 2026-06-17 4 mo ago also EUVD-2021-34207

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
4.5%
EPSS 4.5% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known, plus a Nuclei check

Summary

The Pinterest Automatic plugin for WordPress is vulnerable to authorization bypass due to missing capability checks on the 'wp_pinterest_automatic_parse_request' function and the 'process_form.php' script in versions up to, and including, 1.14.3. This makes it possible for unauthenticated attackers to update arbitrary options on a site that can be used to create new administrative user accounts or redirect unsuspecting site visitors.

Patch / fix

  • valvepress pinterest_automatic_pin 4.14.4

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
22 mo ago

Exploit prediction

4.49% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template Pinterest Automatic < 4.14.4 - Unauthenticated Arbitrary Options Update nuclei detection template
  • blog.nintechnet.com https://blog.nintechnet.com/critical-vulnerability-fixed-in-wordpress-pinterest-automatic-plugin/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • ValvePress Pinterest Automatic

Classification

Weakness
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.