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CVE-2021-24857

CRITICAL 9.8 CVSS 3.1
Published
December 13, 2021
Last modified
June 17, 2026
NVD status
Modified
Reported by
contact@wpscan.com
Weakness
CWE-502
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The ToTop Link WordPress plugin through 1.7.1 passes base64 encoded user input to the unserialize() PHP function, which could lead to PHP Object injection if a plugin installed on the blog has a suitable gadget chain.

Affected products and versions

  • Unknown ToTop Link — From 1.7.1 (including) to 1.7.1 (including)
  • nocean totop_link — Up to and including 1.7.1

References

  • wpscan.com https://wpscan.com/vulnerability/518204d8-fbf5-4bfa-9db5-835f908f8d8e Exploit, Third Party Advisory
  • nvd.nist.gov Official NVD record