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CVE-2015-7315

Plone unauthorized member addition vulnerability

5.9 MediumFix available

Plone 3.3.0 through 3.3.6, 4.0.0 through 4.0.10, 4.1.0 through 4.1.6, 4.2.0 through 4.2.7, 4.3.0 through 4.3.6, and 5.0rc1 allows remote attackers to add a new member to a Plone site with registration enabled, without acknowledgment of site administrator.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
None

Exploit likelihood

2.02%Up 0.8 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.9

Plone 3.3.0 through 3.3.6, 4.0.0 through 4.0.10, 4.1.0 through 4.1.6, 4.2.0 through 4.2.7, 4.3.0 through 4.3.6, and 5.0rc1 allows remote attackers to add a new member to a Plone site with registration enabled, without acknowledgment of site administrator.

Record
CVE-2015-7315
CVSS 3.0
5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness
CWE-284
Updated
2026-11-02
CVE List No score

Plone 3.3.0 through 3.3.6, 4.0.0 through 4.0.10, 4.1.0 through 4.1.6, 4.2.0 through 4.2.7, 4.3.0 through 4.3.6, and 5.0rc1 allows remote attackers to add a new member to a Plone site with registration enabled, without acknowledgment of site administrator.

Record
CVE-2015-7315
Updated
2026-11-02
EUVDEUVD-2017-0085 No score

Plone 3.3.0 through 3.3.6, 4.0.0 through 4.0.10, 4.1.0 through 4.1.6, 4.2.0 through 4.2.7, 4.3.0 through 4.3.6, and 5.0rc1 allows remote attackers to add a new member to a Plone site with registration enabled, without acknowledgment of site administrator.

Record
EUVD-2017-0085
Updated
2026-11-03
GitHub AdvisoriesGHSA-984m-rj28-8c6x 8.2

Plone unauthorized member addition vulnerability

Plone 3.3.0 through 3.3.6, 4.0.0 through 4.0.10, 4.1.0 through 4.1.6, 4.2.0 through 4.2.7, 4.3.0 through 4.3.6, and 5.0rc1 allows remote attackers to add a new member to a Plone site with registration enabled, without acknowledgment of site administrator.

Record
GHSA-984m-rj28-8c6x
CVSS 4.0
8.2 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-284
Updated
2026-11-02
OSVGHSA-984m-rj28-8c6x 8.2

Plone unauthorized member addition vulnerability

Plone 3.3.0 through 3.3.6, 4.0.0 through 4.0.10, 4.1.0 through 4.1.6, 4.2.0 through 4.2.7, 4.3.0 through 4.3.6, and 5.0rc1 allows remote attackers to add a new member to a Plone site with registration enabled, without acknowledgment of site administrator.

Record
GHSA-984m-rj28-8c6x
CVSS 4.0
8.2 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-284
Updated
2026-11-02
OSVPYSEC-2026-2964 8.2

Plone unauthorized member addition vulnerability

Plone 3.3.0 through 3.3.6, 4.0.0 through 4.0.10, 4.1.0 through 4.1.6, 4.2.0 through 4.2.7, 4.3.0 through 4.3.6, and 5.0rc1 allows remote attackers to add a new member to a Plone site with registration enabled, without acknowledgment of site administrator.

Record
PYSEC-2026-2964
CVSS 4.0
8.2 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVPYSEC-2017-52 No score

Plone 3.3.0 through 3.3.6, 4.0.0 through 4.0.10, 4.1.0 through 4.1.6, 4.2.0 through 4.2.7, 4.3.0 through 4.3.6, and 5.0rc1 allows remote attackers to add a new member to a Plone site with registration enabled, without acknowledgment of site administrator.

Record
PYSEC-2017-52
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
products-cmfplone
PyPI
 3.3.0 up to 4.3.6
4.3.6
products-cmfplone
PyPI
 5.0a1 up to 5.0rc2
5.0rc2
plone
PyPI
 3.3 to 3.3.6 None known
plone
PyPI
 4.0a1 to 4.0.10 None known
plone
PyPI
 4.1a1 to 4.1.6 None known
plone
PyPI
 4.2a1 to 4.2.7 None known
plone
PyPI
 4.3a1 to 4.3.6 None known
plone
PyPI
 5.0rc1 to 5.0rc1 None known
products-cmfplone
PyPI
 3.3.0 up to 4.3.7, plus listed versions
4.0b14.14.1.14.1.24.1.3
Show 39 moreShow less
4.1.44.1.54.1.64.1a14.1a24.1a34.1b14.1b24.1rc24.1rc34.24.2.0.14.2.14.2.1.14.2.24.2.34.2.44.2.54.2.64.2.74.2a14.2a24.2b14.2b24.2rc14.2rc24.34.3.14.3.24.3.34.3.44.3.4.14.3.54.3.64.3a14.3a24.3b14.3b24.3rc1
4.3.7
products-cmfplone
PyPI
 5.0a1 up to 5.0rc2, plus listed versions
5.0a25.0a35.0b15.0b1.post15.0b25.0b35.0b45.0rc1
5.0rc2
Show 8 moreShow less
Affected packages
PackageAffectedFixed
plone
PyPI
 3.3 to 3.3.6, plus listed versions
3.3.13.3.23.3.33.3.43.3.5
 None known
plone
PyPI
 4.0a1 to 4.0.10, plus listed versions
4.04.0.14.0.24.0.34.0.4
Show 15 moreShow less
4.0.54.0.64.0.74.0.84.0.94.0a24.0a34.0a44.0a54.0b14.0b24.0b34.0b44.0b54.0rc1
 None known
plone
PyPI
 4.1a1 to 4.1.6, plus listed versions
4.14.1.14.1.24.1.34.1.4
Show 7 moreShow less
4.1.54.1a24.1a34.1b14.1b24.1rc24.1rc3
 None known
plone
PyPI
 4.2a1 to 4.2.7, plus listed versions
4.24.2.14.2.24.2.34.2.4
Show 7 moreShow less
4.2.54.2.64.2a24.2b14.2b24.2rc14.2rc2
 None known
plone
PyPI
 4.3a1 to 4.3.6, plus listed versions
4.34.3.14.3.24.3.34.3.4
Show 5 moreShow less
4.3.54.3a24.3b14.3b24.3rc1
 None known
plone
PyPI
 Listed versions
5.0rc1
 None known
plone
PyPI
 3.3 up to 4.0a1, 4.0 up to 4.1a1, 4.1 up to 4.2a1, 4.2 up to 4.3a1, 4.3 up to 4.3.7, 5.0a1 up to 5.0rc2, plus listed versions
3.3.13.3.23.3.33.3.43.3.5
Show 37 moreShow less
3.3.64.0.14.0.104.0.24.0.34.0.44.0.54.0.64.0.74.0.84.0.94.1.14.1.24.1.34.1.44.1.54.1.64.2.14.2.24.2.34.2.44.2.54.2.64.2.74.3.14.3.24.3.34.3.44.3.54.3.65.0a25.0a35.0b15.0b25.0b35.0b45.0rc1
4.0a14.1a14.2a14.3a14.3.75.0rc2
products-cmfplone
PyPI
 3.3.0 up to 4.3.7, 5.0a1 up to 5.0rc2, plus listed versions
4.0b14.14.1.14.1.24.1.3
Show 45 moreShow less
4.1.44.1.54.1.64.1a14.1a24.1a34.1b14.1b24.1rc24.1rc34.24.2.0.14.2.14.2.1.14.2.24.2.34.2.44.2.54.2.64.2.74.2a14.2a24.2b14.2b24.2rc14.2rc24.34.3.14.3.24.3.34.3.44.3.4.14.3.54.3.64.3a14.3a24.3b14.3b24.3rc15.0a25.0a35.0b15.0b1.post15.0b25.0b3
4.3.75.0rc2

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2015-7315 is a medium vulnerability (CVSS 5.9) in Plone, published September 25, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.02%, the 81st percentile. Fixed in products-cmfplone 4.3.6.

References

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Left out here: 2 versions. The JSON record has them.

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