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TI-2023-00452 Aliases CVE-2023-0477GHSA-xv6m-g863-2r99

Auto Featured Image < 3.9.16 - Author+ Arbitrary File Upload

Priority HIGH 73CWE-434Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-434.

Summary

The Auto Featured Image (Auto Post Thumbnail) WordPress plugin before 3.9.16 includes an AJAX endpoint that allows any user with at least Author privileges to upload arbitrary files, such as PHP files. This is caused by incorrect file extension validation.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01645 76th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix Fixed Auto Featured Image (Auto Post Thumbnail) (Unknown): 3.9.16

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownAuto Featured Image (Auto Post Thumbnail)before 3.9.163.9.16Patch availableCNA
  • Auto Featured Image (Auto Post Thumbnail) VendorUnknown Affected before 3.9.16 Fixed in 3.9.16 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cm-wp:auto_featured_image:*:*:*:*:*:wordpress:*:*before 3.9.16VulnerableCm-wp
  • cpe:2.3:a:cm-wp:auto_featured_image:*:*:*:*:*:wordpress:*:* Versions before 3.9.16 Vulnerable ·Cm-wp

Remediation

  • Fix · CNA Auto Featured Image (Auto Post Thumbnail) (Unknown) Fixed in 3.9.16

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-0477
  2. 2026-10-03 Alias added: GHSA-xv6m-g863-2r99

References

Exploit 1

  • TI-2021-07211 Auto Featured Image < 3.9.3 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences