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Fencer Vulns
critical 9.1

CVE-2026-86706 json

Quick quotes <= 1.0.0 - Unauthenticated Integer-Value Option Update

published 2026-10-11 29 d ago modified 2026-10-13 26 d ago also EUVD-2026-96766

cvss
9.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits
0
none known

Summary

The Quick quotes WordPress plugin through 1.0.0 does not perform any capability or nonce check on one of its AJAX actions and lets the caller choose which option is written, allowing unauthenticated users to alter arbitrary site settings and to make the site unavailable.

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
28 d ago

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • wpscan.com https://wpscan.com/vulnerability/d160d2a3-acc8-40f5-93ea-65f902f6df5d/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CNA 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Affected products

  • Unknown Quick quotes

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns 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.