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Fencer Intel
high 8.8

CVE-2026-121866 json

Exsile SMS Gateway < 2.0.0 - Subscriber+ Privilege Escalation via Arbitrary Option Update

published 2d ago modified 2d ago also EUVD-2026-118949

cvss
8.8
version 3.1, CISA ADP
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits
0
none known

Summary

The iLeads SMS Gateway by Exsile WordPress plugin before 2.0.0 does not check capabilities or nonces in several AJAX actions that update a site option chosen by the request, allowing any authenticated user, such as a subscriber, to change arbitrary WordPress options and escalate to administrator, for example by enabling registration with administrator as the default role.

Patch / fix

  • Unknown iLeads SMS Gateway by Exsile 2.0.0

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2d ago

Exploit prediction

0.23% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • wpscan.com https://wpscan.com/vulnerability/b1fca9ef-8839-4030-88ab-c2bcdd79f488/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Unknown iLeads SMS Gateway by Exsile

Classification

Weakness
  • CWE-269 Improper Privilege Management
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.