What is CVE-2017-5524?

CVE-2017-5524 is a medium-severity vulnerability in Plone, classified under Use of Externally-Controlled Format String. CVSS score: 4.3/10. Published 2017-03-23.

How severe is CVE-2017-5524?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Plone

CVE-2017-5524

Plone 4.x through 4.3.11 and 5.x through 5.0.6 allow remote attackers to bypass a sandbox protection mechanism and obtain sensitive information by leveraging the Python string format method.

Published 2017-03-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.019 (79.1th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: +0.000

Affected products

Plone — versions 4.0, 4.0.1, 4.0.2

Weakness classification (CWE)

CWE-134 — Use of Externally-Controlled Format String

References

plone.org/security/hotfix/20170117/sandbox-escape (Vendor Advisory)
www.securityfocus.com/bid/95679 (VDB Entry, Third Party Advisory, vdb-entry)
www.openwall.com/lists/oss-security/2017/01/18/6 (mailing-list, Patch, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2017-5524?: CVE-2017-5524 is a medium-severity vulnerability in Plone, classified under Use of Externally-Controlled Format String. CVSS score: 4.3/10. Published 2017-03-23.
How severe is CVE-2017-5524?: Medium severity. CVSS v3 base score is 4.3 out of 10.