How severe is CVE-2008-1393?

CVE-2008-1393 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2008-1393 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-1393?

CVE-2008-1393 affects Plone Plone Cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2008-1393?

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

When was CVE-2008-1393 published?

CVE-2008-1393 was published on 2008-03-20 and last updated on 2026-06-16.

CVE-2008-1393

CVE-2008-1393 is a critical-severity vulnerability in Plone Plone Cms with a CVSS 2.0 base score of 10.0. 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: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 3% (85th 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 3.0.5, and probably other 3.x versions, places a base64 encoded form of the username and password in the __ac cookie for the admin account, which makes it easier for remote attackers to obtain administrative privileges by sniffing the network.

Frequently asked questions

What is CVE-2008-1393?: Plone CMS 3.0.5, and probably other 3.x versions, places a base64 encoded form of the username and password in the __ac cookie for the admin account, which makes it easier for remote attackers to obtain administrative privileges by sniffing the network.
How severe is CVE-2008-1393?: CVE-2008-1393 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2008-1393 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-1393?: CVE-2008-1393 affects Plone Plone Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2008-1393?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2008-1393 published?: CVE-2008-1393 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-2008-1394 — High (CVSS 7.5): Plone CMS before 3 places a base64 encoded form of the username and password in the __ac cookie for all user accounts,…
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)…
CVE-2008-1396 — Medium (CVSS 4.3): Plone CMS 3.x uses invariant data (a client username and a server secret) when calculating an HMAC-SHA1 value for an…

All CVEs affecting Plone Plone Cms →

Other CWE-255 (Credentials Management Errors) vulnerabilities

CVE-2016-0898 — Critical (CVSS 10.0): MySQL for PCF tiles 1.7.x before 1.7.10 were discovered to log the AWS access key in plaintext. These credentials were…
CVE-2015-7906 — Critical (CVSS 10.0): LOYTEC LIP-3ECTB 6.0.1, LINX-100, LVIS-3E100, and LIP-ME201 devices allow remote attackers to read a password-hash…
CVE-2015-7856 — Critical (CVSS 10.0): OpenNMS has a default password of rtc for the rtc account, which makes it easier for remote attackers to obtain access…
CVE-2014-9736 — Critical (CVSS 10.0): GE Healthcare Centricity Clinical Archive Audit Trail Repository has a default password of initinit for the (1) SSL key…
CVE-2014-7233 — Critical (CVSS 10.0): GE Healthcare Precision THUNIS-800+ has a default password of (1) 1973 for the factory default System Utilities menu,…
CVE-2014-7232 — Critical (CVSS 10.0): GE Healthcare Discovery XR656 and XR656 G2 has a password of (1) 2getin for the insite user, (2) 4$xray for the xruser…

Browse all CWE-255 (Credentials Management Errors) vulnerabilities →