CVE-2026-23923 (GCVE-0-2026-23923)

Vulnerability from cvelistv5 – Published: 2026-03-24 18:29 – Updated: 2026-03-25 19:25
VLAI?
Title
Unauthenticated arbitrary PHP class instantiation
Summary
An unauthenticated attacker can exploit the Frontend 'validate' action to blindly instantiate arbitrary PHP classes. The impact depends on environment setup but appears limited at this time.
Severity ?
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CWE
  • CWE-470 - Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
Assigner
References
Impacted products
Vendor Product Version
Zabbix Zabbix Affected: 7.4.0 , ≤ 7.4.6 (git)
Create a notification for this product.
Credits
Zabbix wants to thank pitticus for submitting this report on the HackerOne bug bounty platform.
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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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