CVE-2011-3587
CriticalExploitedPublic exploitZope Command Execution Vulnerability
Published May 17, 2022 · Updated Jul 7, 2026 · Also known as GHSA-8w48-m6hx-rjw2, PYSEC-2026-1067
Key Facts
Patch immediately- CVE-2011-3587 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Plone, Zope, zope2 (pypi).
- It is exploited in the wild, listed in Industry KEV feed since Oct 14, 2020. Public exploit code is available.
- EPSS estimates a 78% probability of exploitation in the next 30 days.
- Fixed versions are available, including zope2 2.12.20, zope2 2.13.10.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v2
9.3
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
78%
Higher than 99.5% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2011-3587 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Unspecified vulnerability in Zope 2.12.x and 2.13.x, as used in Plone 4.0.x through 4.0.9, 4.1, and 4.2 through 4.2a2, allows remote attackers to execute arbitrary commands via vectors related to the p_ class in OFS/misc_.py and the use of Python modules.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Oct 14, 2020 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
61 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| PlonePlone | 4.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.5, 4.0.6.1, 4.0.7 | n/a |
| ZopeZope | 2.12.0, 2.12.0-a1, 2.12.0-a2, 2.12.0-a3, 2.12.0-a4, 2.12.0-b1, 2.12.0-b2, 2.12.0-b3 | n/a |
| zope2pypi | >= 2.12.0 | 2.12.20 |
Patched Releases
zope2
2.12.20, 2.13.10
Timeline
Added to Industry KEV feed
Oct 14, 2020
Publicly disclosed
May 17, 2022
Last updated
Jul 7, 2026
References
- advisory46221
- advisoryGHSA advisory
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2011-3587
- exploitVulnCheck exploitation report
- exploitMSF plone_popen2.rb
FAQ
Common Questions.
Unspecified vulnerability in Zope 2.12.x and 2.13.x, as used in Plone 4.0.x through 4.0.9, 4.1, and 4.2 through 4.2a2, allows remote attackers to execute arbitrary commands via vectors related to the p_ class in OFS/misc_.py and the use of Python modules.
Affected: Plone versions 4.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.5, 4.0.6.1, 4.0.7; Zope versions 2.12.0, 2.12.0-a1, 2.12.0-a2, 2.12.0-a3, 2.12.0-a4, 2.12.0-b1, 2.12.0-b2, 2.12.0-b3; zope2 (pypi) versions >= 2.12.0. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Oct 14, 2020.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including zope2 2.12.20, zope2 2.13.10.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2011-3587 Running On Your Attack Surface?
Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.
Request A Demo