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Fencer Intel
critical 9.8

CVE-2026-126119 json

Streamit Plugin < 1.3.10 - Unauthenticated Remote Code Execution via Arbitrary Function Call

published 2d ago modified yesterday also EUVD-2026-124854

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits
0
none known

Summary

The Streamit WordPress plugin before 1.3.10 does not perform any authorization or nonce verification on one of its unauthenticated AJAX routes, which invokes an attacker-supplied PHP function with an attacker-supplied argument array, allowing unauthenticated attackers to call arbitrary functions (for example to create an administrator account), leading to privilege escalation and remote code execution.

Patch / fix

  • Unknown Streamit 1.3.10

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CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
yesterday

Exploit prediction

0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-14).

Exploits and checks

  • wpscan.com https://wpscan.com/vulnerability/41d42891-1170-4e84-959c-d2eec010bf7c/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Unknown Streamit

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.