WordPress Core < 5.5.3 - PHP Object Injection Gadget

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9.8
Deserialization of Untrusted Data
CVE CVE-2021-29476
CVSS 9.8 (Critical)
Publicly Published October 29, 2020
Last Updated August 14, 2023
Researcher Alex Concha

Description

Requests is a HTTP library written in PHP. Requests mishandles deserialization in FilteredIterator. The issue has been patched and users of `Requests` 1.6.0, 1.6.1 and 1.7.0 should update to version 1.8.0.

Wordfence blocked 11 attacks targeting this vulnerability in the past 24 hours.

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1 affected software package

WordPress

Software Type Core
Patched? Yes
Remediation Update to one of the following versions, or a newer patched version: 3.7.35, 3.8.35, 3.9.33, 4.0.32, 4.1.32, 4.2.29, 4.3.25, 4.4.24, 4.5.23, 4.6.20, 4.7.19, 4.8.15, 4.9.16, 5.0.11, 5.1.8, 5.2.9, 5.3.6, 5.4.4, 5.5.3
Affected Versions
  • < 3.7
  • 5.1 - 5.1.8
  • 5.2 - 5.2.9
  • 5.3 - 5.3.6
Expand to see 16 more affected version ranges.
  • 5.4 - 5.4.4
  • 5.5 - 5.5.3
  • 3.7 - 3.7.35
  • 3.8 - 3.8.35
  • 3.9 - 3.9.33
  • 4.0 - 4.0.32
  • 4.1 - 4.1.32
  • 4.2 - 4.2.29
  • 4.3 - 4.3.25
  • 4.4 - 4.4.24
  • 4.5 - 4.5.23
  • 4.6 - 4.6.20
  • 4.7 - 4.7.19
  • 4.8 - 4.8.15
  • 4.9 - 4.9.16
  • 5.0 - 5.0.11
Patched Versions
  • 3.7.35
  • 3.8.35
  • 3.9.33
  • 4.0.32
Expand to see 15 more patched versions.
  • 4.1.32
  • 4.2.29
  • 4.3.25
  • 4.4.24
  • 4.5.23
  • 4.6.20
  • 4.7.19
  • 4.8.15
  • 4.9.16
  • 5.0.11
  • 5.1.8
  • 5.2.9
  • 5.3.6
  • 5.4.4
  • 5.5.3

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