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Fencer Intel
medium 5.4

CVE-2011-1949 json

Plone Cross-site Scripting vulnerability

published 2011-06-06 15 y ago modified 2026-06-16 4 mo ago also GHSA-h6hq-c896-w882 , PYSEC-2011-15 , EUVD-2011-0020

cvss
5.4
version 3.1, GitHub
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

Cross-site scripting (XSS) vulnerability in the safe_html filter in Products.PortalTransforms in Plone 2.1 through 4.1 allows remote authenticated users to inject arbitrary web script or HTML via unspecified vectors, a different vulnerability than CVE-2010-2422.

Patch / fix

  • pypi plone 3.3.6, 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-2011-1949 updated cvss 4.3

plone: A persistent cross site scripting vulnerability

  • Red Hat Enterprise Linux 5 conga
    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

1.87% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:P/A:N
GitHub 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
pypi plone
>=3.3.2, <3.3.6
>=4.0a0, <4.0.6
>=4.1a0, <4.1.1
<4.1.1
3.3.6
4.0.6
4.1.1

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

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.