How severe is CVE-2008-4122?

CVE-2008-4122 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2008-4122 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-4122?

CVE-2008-4122 affects Joomla Joomla!. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2008-4122?

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-2008-4122 published?

CVE-2008-4122 was published on 2008-12-19 and last updated on 2026-06-16.

CVE-2008-4122

CVE-2008-4122 is a high-severity vulnerability in Joomla Joomla! with a CVSS 3.x 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-319.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-319
Affected product: Joomla Joomla!
Published: 2008-12-19
Last modified: 2026-06-16

Description

Joomla! 1.5.8 does not set the secure flag for the session cookie in an https session, which makes it easier for remote attackers to capture this cookie by intercepting its transmission within an http session.

Frequently asked questions

What is CVE-2008-4122?: Joomla! 1.5.8 does not set the secure flag for the session cookie in an https session, which makes it easier for remote attackers to capture this cookie by intercepting its transmission within an http session.
How severe is CVE-2008-4122?: CVE-2008-4122 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2008-4122 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-4122?: CVE-2008-4122 affects Joomla Joomla!. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2008-4122?: 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-2008-4122 published?: CVE-2008-4122 was published on 2008-12-19 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:joomla:joomla\!:1.5.8:*:*:*:*:*:*:*

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