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Fencer Intel
medium 6.1

CVE-2016-7140 json

Plone vulnerable to Cross-site Scripting

published 2017-03-07 9 y ago modified 2026-06-17 4 mo ago also GHSA-chvw-gjxf-f8mc , PYSEC-2017-63 , EUVD-2017-0096

cvss
6.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits
0
none known

Summary

Multiple cross-site scripting (XSS) vulnerabilities in the ZMI page in Zope2 in Plone CMS 5.x through 5.0.6, 4.x through 4.3.11, and 3.3.x through 3.3.6 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Patch / fix

  • pypi plone 4.0a1, 4.3.12, 5.0.7

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-2016-7140 updated cvss 5.4

plone: Non-Persistent XSS in Zope2

  • Red Hat Enterprise Linux 5 conga
    affected: no fix planned “Will not fix”

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

1.59% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • packetstormsecurity.com http://packetstormsecurity.com/files/139110/Plone-CMS-4.3.11-5.0.6-XSS-Traversal-Open-Redirection.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 6.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N
GitHub 3.0 6.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
pypi plone
>=5.0a1, <5.0.7
>=3.3a1, <4.3.12
>=5.0, <5.0.7
>=4.0, <4.3.12
>=3.3, <4.0a1
5.0.7
4.3.12
4.0a1

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.