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TI-2021-06544 Aliases CVE-2021-24252GHSA-4r26-734p-358q

Event Banner <= 1.3 - Arbitrary File Upload to RCE

Priority LOW 35CWE-434Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

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

Summary

The Event Banner WordPress plugin through 1.3 does not verify the uploaded image file, allowing admin accounts to upload arbitrary files, such as .exe, .php, or others executable, leading to RCE. Due to the lack of CSRF check, the issue can also be used via such vector to achieve the same result, or via a LFI as authorisation checks are missing (but would require WP to be loaded)

Why it matters now

EPSS 0.01678 77th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownEvent Banner1.3 – 1.3—No fix listedCNA
  • Event Banner VendorUnknown Affected 1.3 – 1.3 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:wp-eventmanager:event_banner:*:*:*:*:*:wordpress:*:*up to 1.3VulnerableWP Event Manager
  • cpe:2.3:a:wp-eventmanager:event_banner:*:*:*:*:*:wordpress:*:* Versions up to 1.3 Vulnerable ·WP Event Manager

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-24252
  2. 2026-10-03 Alias added: GHSA-4r26-734p-358q

References

Exploit 1

Other 1

Sources

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