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Fencer Intel
medium 6.5

CVE-2011-1950 json

Plone and plone.app.users allow remote authenticated users to modify the properties of arbitrary accounts

published 2011-06-06 15 y ago modified 2026-07-13 3 mo ago also GHSA-2qx8-589j-gcpx , PYSEC-2011-16 , PYSEC-2026-2888 , EUVD-2011-0021

cvss
6.5
version 3.1, GitHub
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

plone.app.users in Plone 4.0 and 4.1 allows remote authenticated users to modify the properties of arbitrary accounts via unspecified vectors, as exploited in the wild in June 2011.

Patch / fix

  • pypi plone-app-users 1.0.5, 1.1.1
  • pypi plone 4.0.6, 4.1.1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2011-1950 updated cvss 3.5

plone: Privilege escalation via plone.app.users (Plone v4.0 and v4.1 specific)

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.35% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.5 AV:N/AC:L/Au:S/C:N/I:P/A:P
OSV 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
GitHub 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
pypi plone-app-users
>=1.0a1, <1.0.5
>=1.1b1, <1.1.1
1.0.5
1.1.1
pypi plone
>=4.0.1, <4.0.6
>=4.1.0, <4.1.1
<4.1.1
4.0.6
4.1.1

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.