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Fencer Vulns
high 8.8

CVE-2020-15660 json

Missing checks on Content-Type headers in geckodriver before 0.27.0 could lead to a CSRF vulnerability, that might, when paired with a spec…

published 2021-07-20 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-7647

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits
0
none known

Summary

Missing checks on Content-Type headers in geckodriver before 0.27.0 could lead to a CSRF vulnerability, that might, when paired with a specifically prepared request, lead to remote code execution.

Patch / fix

  • mozilla geckodriver 0.27.0
  • geckodriver Arch Linux 0.29.1-1

arch linux advisories AVG-2180

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-15660 updated cvss 8.8

geckodriver: missing checks on Content-Type headers leads to CSRF

  • Red Hat Advanced Cluster Management for Kubernetes 2 geckodriver
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.13% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-352 Cross-Site Request Forgery

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.