CVE-2008-1393

Severity: critical (CVSS 10.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2008-03-20 · updated 2026-06-16
Weakness: CWE-255

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.

Affected products

Plone Cms: through 3; through 3.0.5

References

http://plone.org/documentation/how-to/secure-login-without-plain-text-passwords
http://plone.org/products/plone/roadmap/48?
http://securityreason.com/securityalert/3754
http://www.procheckup.com/Hacking_Plone_CMS.pdf
http://www.securityfocus.com/archive/1/489544/100/0/threaded
https://exchange.xforce.ibmcloud.com/vulnerabilities/41427
http://plone.org/documentation/how-to/secure-login-without-plain-text-passwords
http://plone.org/products/plone/roadmap/48?
http://securityreason.com/securityalert/3754
http://www.procheckup.com/Hacking_Plone_CMS.pdf
http://www.securityfocus.com/archive/1/489544/100/0/threaded
https://exchange.xforce.ibmcloud.com/vulnerabilities/41427

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