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CVE-2012-5496

Plone DoS via Crafted URL

5.0 MediumFix available

kupu_spellcheck.py in Kupu in Plone before 4.0 allows remote attackers to cause a denial of service (ZServer thread lock) via a crafted URL.

Exploit likelihood

1.62%Up 0.4 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.0

kupu_spellcheck.py in Kupu in Plone before 4.0 allows remote attackers to cause a denial of service (ZServer thread lock) via a crafted URL.

Record
CVE-2012-5496
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-399
Updated
2026-11-02
CVE List No score

kupu_spellcheck.py in Kupu in Plone before 4.0 allows remote attackers to cause a denial of service (ZServer thread lock) via a crafted URL.

Record
CVE-2012-5496
Updated
2026-11-02
EUVDEUVD-2014-0056 No score

kupu_spellcheck.py in Kupu in Plone before 4.0 allows remote attackers to cause a denial of service (ZServer thread lock) via a crafted URL.

Record
EUVD-2014-0056
Updated
2026-11-03
GitHub AdvisoriesGHSA-gx6w-hcw3-5r37 8.7

Plone DoS via Crafted URL

kupu_spellcheck.py in Kupu in Plone before 4.0 allows remote attackers to cause a denial of service (ZServer thread lock) via a crafted URL.

Record
GHSA-gx6w-hcw3-5r37
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400
Updated
2026-11-02
OSVGHSA-gx6w-hcw3-5r37 8.7

Plone DoS via Crafted URL

kupu_spellcheck.py in Kupu in Plone before 4.0 allows remote attackers to cause a denial of service (ZServer thread lock) via a crafted URL.

Record
GHSA-gx6w-hcw3-5r37
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400
Updated
2026-11-02
OSVPYSEC-2014-38 No score

kupu_spellcheck.py in Kupu in Plone before 4.0 allows remote attackers to cause a denial of service (ZServer thread lock) via a crafted URL.

Record
PYSEC-2014-38
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
plone
PyPI
 before 4.0
4.0
plone
PyPI
 before 4.0, plus listed versions
3.23.2.13.2.23.2.33.2a1
Show 25 moreShow less
3.2rc13.33.3.13.3.23.3.33.3.43.3.53.3.63.3b13.3rc13.3rc23.3rc33.3rc43.3rc54.0a14.0a24.0a34.0a44.0a54.0b14.0b24.0b34.0b44.0b54.0rc1
4.0
plone
PyPI
 before 3.3.6, plus listed versions
3.23.2.13.2.23.2.33.2a1
Show 13 moreShow less
3.2rc13.33.3.13.3.23.3.33.3.43.3.53.3b13.3rc13.3rc23.3rc33.3rc43.3rc5
3.3.6

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-2012-5496 is a medium vulnerability (CVSS 5.0) in Plone, published September 30, 2014. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.62%, the 76th percentile. Fixed in plone 4.0.

References

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