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CVE-2008-1393

27
FAUCET Score

CVE-2008-1393 describes a critical vulnerability in Plone CMS versions 3.0.5 and potentially other 3.x releases, where the administrator's username and password are base64 encoded and stored in the __ac cookie. This design flaw allows remote attackers to easily obtain administrative privileges by sniffing network traffic. With a CVSS score of 10.0, this vulnerability is highly severe, requiring no authentication and having complete impact on confidentiality, integrity, and availability. Despite its critical nature, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3CPE matchmatch criteria
cpe:2.3:a:plone:plone_cms:*:*:*:*:*:*:*:*
<= 3.0.5CPE matchmatch criteria
cpe:2.3:a:plone:plone_cms:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.88%
Probability of exploitation in next 30 days
EPSS Percentile
85.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0288 is in the 74th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

pippatch availablevia ghsa
Product: PloneFixed in: 3.0

Vendor Advisories (1)

pipGHSA-593c-j348-f3gvhigh

Plone Improper Session Management

May 1, 2022

References

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