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.

Published: 2008-03-20 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2008-1396 is rated Low Risk (39.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.13%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2008-1396

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.33% 1.13% +0.80%
2 2025-03-30 0.39% 0.33% -0.06%
3 2025-03-29 0.39%

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2008-1396

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
8.6 2.9 [email protected]

Weakness enumeration for CVE-2008-1396

GitHub Security Advisory for CVE-2008-1396

GHSA-hjp5-hv33-q58g · Severity: medium · Ecosystem: pip — Plone credentials stored in session cookie

OS Trackers for CVE-2008-1396

vendor priority summary link
ubuntu low CVE-2008-1396 low priority: Ubuntu including 1 source packages (zope-cmfplone), 13 status rows across 13 suites (dapper, edgy, feisty, gutsy, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, oneiric, upstream): DNE 6, ignored 6, needs-triage 1. https://ubuntu.com/security/CVE-2008-1396

Affected software / configurations for CVE-2008-1396

Vendor Product Version Raw CPE
plone plone_cms cpe:2.3:a:plone:plone_cms:*:*:*:*:*:*:*:*

References for CVE-2008-1396

cvelogic Threat Intelligence