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Fencer Vulns
medium 5.3

CVE-2020-35176 json

In AWStats through 7.8, cgi-bin/awstats.pl?config= accepts a partial absolute pathname (omitting the initial /etc), even though it was inte…

published 2020-12-11 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-22864

cvss
5.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.2%
EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

In AWStats through 7.8, cgi-bin/awstats.pl?config= accepts a partial absolute pathname (omitting the initial /etc), even though it was intended to only read a file in the /etc/awstats/awstats.conf format. NOTE: this issue exists because of an incomplete fix for CVE-2017-1000501 and CVE-2020-29600.

Patch / fix

  • awstats Debian 14, Debian 13, Debian 12 7.8-2

debian advisories DEBIAN-CVE-2020-35176

  • awstats Ubuntu 18.04 LTS 7.6+dfsg-2ubuntu0.18.04.1
  • awstats Ubuntu 20.04 LTS 7.6+dfsg-2ubuntu0.20.04.1
  • awstats Ubuntu Pro 16.04 LTS 7.4+dfsg-1ubuntu0.4+esm1

ubuntu advisories UBUNTU-CVE-2020-35176

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

  • awstats Alpine 3.11, Alpine 3.10 7.8-r0
  • awstats Alpine 3.24, Alpine 3.23, Alpine 3.22 +10 more 7.8-r1

alpine advisories ALPINE-CVE-2020-35176

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • awstats Arch Linux 7.8-3

arch linux advisories AVG-1356

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-2020-35176 updated cvss 5.3

awstats: path traversal in awstats.pl

  • Red Hat All currently supported Red Hat products
    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

2.17% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

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.