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cve recordcriticalzero dayexploit reported

CVE-2026-28139

Published
CVSS9.8
Severitycritical
WeaknessCWE-502
EPSS0.38%30.5th percentile
Exploited1 KEV source

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

patch window

Called exploited 2 days before disclosure.

Measured from the CVE publication date to the earliest of 1 KEV catalogue that list it.

The life of this vulnerability

  1. CVE published
  2. First KEV listing2d
  3. Last sightingsame day

Gaps are compressed to equal steps. The elapsed time is printed under each.

Which catalogues call it exploited

Sources1 of 3
Listings differ by

This rests on a single catalogue. No second catalogue corroborates the claim that it is being exploited. CIRCL is an aggregator and is not counted.

Public exploitation evidence

1 public report collected from VulnCheck and CIRCL, first on Aug 4, 2026. Each links to its original source. We have not verified them.

Description

Unauthenticated PHP Object Injection in Ajax Search Lite <= 4.14.4 versions.

References

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Our coverage of CVE-2026-28139

No stories yet. This page updates automatically when we publish reporting that references CVE-2026-28139.