Plone CMS 3.0.5, and probably other 3.x versions, places a base64 encoded form of the…
Priority MEDIUM 48CWE-255Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and GitHub.
Summary
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.
Why it matters now
EPSS 0.02904 87th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed Plone (PyPI): 3.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | Plone (PyPI) | before 3.0 | 3.0 | Patch available | GHSA-593c-j348-f3gv |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- Plone (PyPI) Vendor— Affected before 3.0 Fixed in 3.0 Patch available GHSA-593c-j348-f3gv
Remediation
- Fix · GHSA-593c-j348-f3gv Plone (PyPI) Fixed in 3.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2008-1393
- 2026-10-03 Alias added: GHSA-593c-j348-f3gv
References
More Plone Cms vulnerabilities
- TI-2008-01341 Plone CMS before 3 places a base64 encoded form of the username and password in the __ac… CVSS 2.0HIGH 7.5
- TI-2008-01342 Plone CMS does not record users' authentication states, and implements the logout feature… CVSS 2.0HIGH 7.5
- TI-2008-01343 Plone CMS 3.x uses invariant data (a client username and a server secret) when… CVSS 2.0MEDIUM 4.3
- TI-2008-00151 Multiple cross-site request forgery (CSRF) vulnerabilities in Plone CMS 3.0.5 and 3.0.6… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2008-1393 · CVE Program
- CVE-2008-1393 · NVD
- FIRST EPSS
- GHSA-593c-j348-f3gv · GitHub Advisory Database · CC BY 4.0
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