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Fencer Intel
medium 6.1

CVE-2017-6807 json

mod_auth_mellon before 0.13.1 is vulnerable to a Cross-Site Session Transfer attack, where a user with access to one web site running on a…

published 2017-03-13 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-15861

cvss
6.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits
0
none known

Summary

mod_auth_mellon before 0.13.1 is vulnerable to a Cross-Site Session Transfer attack, where a user with access to one web site running on a server can copy their session cookie to a different web site on the same server to get access to that site.

Patch / fix

  • libapache2-mod-auth-mellon Debian 14, Debian 13, Debian 12 0.12.0-2

debian advisories DEBIAN-CVE-2017-6807

  • libapache2-mod-auth-mellon Ubuntu 16.04 LTS 0.12.0-2+deb9u1build0.16.04.1

ubuntu advisories UBUNTU-CVE-2017-6807

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2017-6807 updated cvss 6.4

mod_auth_mellon: Cross-site session transfer vulnerability

  • Red Hat Enterprise Linux 6 mod_auth_mellon Red Hat Enterprise Linux 7 mod_auth_mellon, mod_auth_mellon-diagnostics
    affected: no fix planned “Will not fix”

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

1.07% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 6.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

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.