How severe is CVE-2011-3839?

CVE-2011-3839 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2011-3839 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-3839?

CVE-2011-3839 affects Wuzly. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-3839?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2011-3839 published?

CVE-2011-3839 was published on 2011-12-24 and last updated on 2026-06-16.

CVE-2011-3839

CVE-2011-3839 is a high-severity vulnerability in Wuzly with a CVSS 2.0 base score of 7.5. 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-264.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Wuzly
Published: 2011-12-24
Last modified: 2026-06-16

Description

The administration functionality in Wuzly 2.0 allows remote attackers to bypass authentication by setting the dXNlcm5hbWU cookie.

Frequently asked questions

What is CVE-2011-3839?: The administration functionality in Wuzly 2.0 allows remote attackers to bypass authentication by setting the dXNlcm5hbWU cookie.
How severe is CVE-2011-3839?: CVE-2011-3839 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2011-3839 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-3839?: CVE-2011-3839 affects Wuzly. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-3839?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2011-3839 published?: CVE-2011-3839 was published on 2011-12-24 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:wuzly:wuzly:2.0:*:*:*:*:*:*:*

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