How severe is CVE-2009-5020?

CVE-2009-5020 has a CVSS 2.0 base score of 5.8, rated medium severity.

Is CVE-2009-5020 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-5020?

CVE-2009-5020 primarily affects Awstats. In total, 29 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-5020?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-5020 published?

CVE-2009-5020 was published on 2010-12-02 and last updated on 2026-06-16.

CVE-2009-5020

CVE-2009-5020 is a medium-severity vulnerability in Awstats with a CVSS 2.0 base score of 5.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 2.0 base score 5.8)
EPSS exploit prediction: 3% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Awstats
Published: 2010-12-02
Last modified: 2026-06-16

Description

Open redirect vulnerability in awredir.pl in AWStats before 6.95 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via unspecified vectors.

Frequently asked questions

What is CVE-2009-5020?: Open redirect vulnerability in awredir.pl in AWStats before 6.95 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via unspecified vectors.
How severe is CVE-2009-5020?: CVE-2009-5020 has a CVSS 2.0 base score of 5.8, rated medium severity.
Is CVE-2009-5020 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-5020?: CVE-2009-5020 primarily affects Awstats. In total, 29 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-5020?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-5020 published?: CVE-2009-5020 was published on 2010-12-02 and last updated on 2026-06-16.

References

http://awstats.sourceforge.net/docs/awstats_changelog.txt

Affected products (29)

cpe:2.3:a:awstats:awstats:*:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:1.0:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:2.1.:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:2.2.3:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:2.2.4:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:3.0:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:3.1:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:3.2:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:4.0:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:4.1:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:5.0:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:5.1:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:5.2:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:5.3:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:5.4:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:5.5:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:5.6:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:5.7:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:5.8:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:5.9:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:6.0:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:6.1:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:6.2:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:6.3:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:6.4:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:6.5:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:6.6:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:6.7:*:*:*:*:*:*:*
cpe:2.3:a:awstats:awstats:6.8:*:*:*:*:*:*:*

More vulnerabilities in Awstats

CVE-2020-29600 — Critical (CVSS 9.8): In AWStats through 7.7, cgi-bin/awstats.pl?config= accepts an absolute pathname, even though it was intended to only…
CVE-2017-1000501 — Critical (CVSS 9.8): Awstats version 7.6 and earlier is vulnerable to a path traversal flaw in the handling of the "config" and "migrate"…
CVE-2025-63261 — High (CVSS 7.8): AWStats 8.0 is vulnerable to Command Injection via the open function
CVE-2010-4368 — High (CVSS 7.5): awstats.cgi in AWStats before 7.0 on Windows accepts a configdir parameter in the URL, which allows remote attackers to…
CVE-2010-4367 — High (CVSS 7.5): awstats.cgi in AWStats before 7.0 accepts a configdir parameter in the URL, which allows remote attackers to execute…
CVE-2005-0363 — High (CVSS 7.5): awstats.pl in AWStats 4.0 and 6.2 allows remote attackers to execute arbitrary commands via shell metacharacters in the…

All CVEs affecting Awstats →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →