{"id":"CVE-2008-1396","aliases":["EUVD-2022-4170","GHSA-hjp5-hv33-q58g","PYSEC-2026-732"],"status":"published","title":"Plone credentials stored in session cookie","description":"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.","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01139,"percentile":0.66801,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-255"],"published":"2008-03-20T00:00:00Z","modified":"2026-07-06T08:11:19Z","affected":[{"source":"ghsa","ecosystem":"PyPI","package":"plone","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"3.1.7"}]}]},{"source":"osv","ecosystem":"PyPI","package":"plone","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"3.1.7"}]}]},{"source":"osv","ecosystem":"PyPI","package":"plone","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"3.1.7"}]}]}],"products":[{"vendor":"plone","product":"plone_cms"}],"references":[{"url":"http://securityreason.com/securityalert/3754","tags":["third-party-advisory","x_refsource_SREASON","x_transferred","web"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/41421","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"http://www.securityfocus.com/archive/1/489544/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","web"]},{"url":"http://www.procheckup.com/Hacking_Plone_CMS.pdf","tags":["x_refsource_MISC","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2008-1396","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-hjp5-hv33-q58g","tags":["advisory"]},{"url":"https://github.com/plone/Plone","tags":["web"]},{"url":"https://pypi.org/project/plone","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2008-1396","description":"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.","status":"published","published":"2008-03-20T00:00:00Z","modified":"2024-08-07T08:17:34.695Z","updated_at":"2026-11-02T14:34:47.71012Z"}],"euvd":[{"id":"EUVD-2022-4170","description":"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.","status":"published","published":"2008-03-20T00:00:00Z","modified":"2024-08-07T08:17:34Z","updated_at":"2026-11-03T01:39:01.686266Z"}],"ghsa":[{"id":"GHSA-hjp5-hv33-q58g","title":"Plone credentials stored in session cookie","description":"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.","status":"published","published":"2022-05-01T23:39:47Z","modified":"2023-09-22T23:41:41Z","updated_at":"2026-11-02T14:37:06.234371Z"}],"nvd":[{"id":"CVE-2008-1396","description":"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.","status":"published","published":"2008-03-20T00:44:00Z","modified":"2026-06-16T22:51:39.6Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-255"],"updated_at":"2026-11-02T14:01:25.857543Z"}],"osv":[{"id":"GHSA-hjp5-hv33-q58g","title":"Plone credentials stored in session cookie","description":"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.","status":"published","published":"2022-05-01T23:39:47Z","modified":"2026-07-06T08:11:19.011644797Z","updated_at":"2026-11-02T15:46:49.28217Z"},{"id":"PYSEC-2026-732","title":"Plone credentials stored in session cookie","description":"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.","status":"published","published":"2026-07-02T14:13:20.99643Z","modified":"2026-07-06T08:00:51.697864215Z","updated_at":"2026-11-02T15:52:58.117212Z"}]}}