How severe is CVE-2008-1396?

CVE-2008-1396 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2008-1396 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-1396?

CVE-2008-1396 affects Plone Plone Cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2008-1396?

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

When was CVE-2008-1396 published?

CVE-2008-1396 was published on 2008-03-20 and last updated on 2026-06-16.

CVE-2008-1396

CVE-2008-1396 is a medium-severity vulnerability in Plone Plone Cms with a CVSS 2.0 base score of 4.3. 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-255.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-255
Affected product: Plone Plone Cms
Published: 2008-03-20
Last modified: 2026-06-16

Description

Plone CMS 3.x uses invariant data (a client username and a server secret) when calculating an HMAC-SHA1 value for an authentication cookie, which makes it easier for remote attackers to gain permanent access to an account by sniffing the network.

Frequently asked questions

What is CVE-2008-1396?: Plone CMS 3.x uses invariant data (a client username and a server secret) when calculating an HMAC-SHA1 value for an authentication cookie, which makes it easier for remote attackers to gain permanent access to an account by sniffing the network.
How severe is CVE-2008-1396?: CVE-2008-1396 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2008-1396 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-1396?: CVE-2008-1396 affects Plone Plone Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2008-1396?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2008-1396 published?: CVE-2008-1396 was published on 2008-03-20 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:plone:plone_cms:*:*:*:*:*:*:*:*

More vulnerabilities in Plone Plone Cms

CVE-2008-1393 — Critical (CVSS 10.0): Plone CMS 3.0.5, and probably other 3.x versions, places a base64 encoded form of the username and password in the __ac…
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CVE-2008-1395 — High (CVSS 7.5): Plone CMS does not record users' authentication states, and implements the logout feature solely on the client side,…
CVE-2008-0164 — Medium (CVSS 4.3): Multiple cross-site request forgery (CSRF) vulnerabilities in Plone CMS 3.0.5 and 3.0.6 allow remote attackers to (1)…

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Other CWE-255 (Credentials Management Errors) vulnerabilities

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