CVE-2008-1396

mediumpriority · track · 17EPSS 0.011 · 66 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.14% (66th) EPSS

CVSS 4.3 · medium

Is it mine?

3 products

Check your exposure

Who says so?

3 sources

enisa_euvd · osv · nvd

EPSS · scored 2026-10-28

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.

cvss

Technical severity, 0–10. One row per scoring source.

4.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.7–4.3

v2.04.3mediumAV:N/AC:M/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v2.03.7lowAV:N/AC:M/Au:N/C:P/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-255USprimary

affected products (3)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
plone plone cmsall versionsnvdUScpe:2.3:a:plone:plone_cms:*:*:*:*:*:*:*:*
PyPI plone≤ 3.1.7osvUSpkg:pypi/plone

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-hjp5-hv33-q58gPlone credentials stored in session cookie2022-05-01ghsa · osvUS
Plone CMS 3.1.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.
PYSEC-2026-732Plone credentials stored in session cookie2026-07-02vendor · osvUS
Plone CMS 3.1.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.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd osv nvd NVD CVE.org MITRE

published 2008-03-20modified 2026-06-16

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references (8)

External citations — patches, advisories, analysis.

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